Abstract (831) | Core Tip (802) | Full Article (HTML) (4275) | Figures (1-2) (166) | Full Article (PDF)-1227K (467) | Peer-Review Report-108K (166) | Answering Reviewers-87K (201) | Received: 01/28/2015 | Revised: 04/27/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (20) | Total Visits (9967) | Similar Articles (33) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (901) | Core Tip (915) | Full Article (HTML) (8566) | Figures (1-1) (224) | Tables (1-1) (154) | Full Article (PDF)-1231K (1020) | Peer-Review Report-155K (195) | Answering Reviewers-238K (261) | Received: 05/26/2015 | Revised: 07/08/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (21) | Total Visits (16133) | Similar Articles (93) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (933) | Core Tip (872) | Full Article (HTML) (6128) | Figures (1-1) (240) | Full Article (PDF)-1231K (597) | Peer-Review Report-88K (204) | Answering Reviewers-67K (199) | Received: 04/13/2015 | Revised: 06/03/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (40) | Total Visits (13998) | Similar Articles (33) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (874) | Core Tip (900) | Full Article (HTML) (4019) | Full Article (PDF)-1201K (627) | Peer-Review Report-79K (196) | Answering Reviewers-209K (202) | Received: 05/09/2015 | Revised: 07/27/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (17) | Total Visits (11346) | Similar Articles (80) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (908) | Core Tip (822) | Full Article (HTML) (4943) | Tables (1-2) (163) | Full Article (PDF)-1112K (600) | Peer-Review Report-81K (152) | Answering Reviewers-63K (227) | Received: 04/28/2015 | Revised: 06/18/2015 | Accepted: 08/31/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (26) | Total Visits (11537) | Similar Articles (175) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (990) | Core Tip (965) | Full Article (HTML) (4375) | Tables (1-4) (214) | Full Article (PDF)-1201K (601) | Peer-Review Report-80K (155) | Answering Reviewers-92K (219) | Received: 04/15/2015 | Revised: 06/28/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (35) | Total Visits (12693) | Similar Articles (24) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1257) | Core Tip (990) | Full Article (HTML) (13385) | Tables (1-4) (185) | Full Article (PDF)-1241K (2117) | Peer-Review Report-101K (391) | Answering Reviewers-283K (325) | Received: 04/26/2015 | Revised: 07/23/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (190) | Total Visits (23992) | Similar Articles (349) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (903) | Core Tip (982) | Full Article (HTML) (6424) | Figures (1-4) (166) | Tables (1-2) (145) | Full Article (PDF)-1327K (904) | Peer-Review Report-94K (243) | Answering Reviewers-67K (293) | Received: 04/23/2015 | Revised: 07/29/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (34) | Total Visits (14490) | Similar Articles (339) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (993) | Core Tip (931) | Full Article (HTML) (4870) | Figures (1-1) (221) | Full Article (PDF)-1205K (657) | Peer-Review Report-79K (193) | Answering Reviewers-112K (189) | Received: 04/26/2015 | Revised: 07/29/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (24) | Total Visits (11706) | Similar Articles (153) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1067) | Core Tip (1075) | Full Article (HTML) (7386) | Figures (1-2) (161) | Full Article (PDF)-1274K (1003) | Peer-Review Report-83K (217) | Answering Reviewers-326K (212) | Received: 06/03/2015 | Revised: 09/11/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (71) | Total Visits (16328) | Similar Articles (329) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1177) | Core Tip (952) | Full Article (HTML) (10181) | Figures (1-1) (160) | Tables (1-1) (131) | Full Article (PDF)-1536K (709) | Peer-Review Report-104K (174) | Answering Reviewers-212K (210) | Received: 04/28/2015 | Revised: 07/19/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (28) | Total Visits (17740) | Similar Articles (352) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1025) | Core Tip (1009) | Full Article (HTML) (6102) | Figures (1-2) (149) | Full Article (PDF)-1408K (847) | Peer-Review Report-81K (205) | Answering Reviewers-105K (379) | Received: 06/30/2015 | Revised: 08/03/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (52) | Total Visits (15067) | Similar Articles (1542) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1183) | Core Tip (898) | Full Article (HTML) (10515) | Figures (1-3) (151) | Tables (1-2) (174) | Full Article (PDF)-1591K (1329) | Peer-Review Report-78K (242) | Answering Reviewers-71K (389) | Received: 04/28/2015 | Revised: 07/31/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (57) | Total Visits (19532) | Similar Articles (1543) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1129) | Core Tip (1002) | Full Article (HTML) (10168) | Figures (1-2) (162) | Tables (1-3) (135) | Full Article (PDF)-3282K (1121) | Peer-Review Report-91K (210) | Answering Reviewers-100K (263) | Received: 04/16/2015 | Revised: 05/28/2015 | Accepted: 08/31/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (49) | Total Visits (19480) | Similar Articles (1547) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1023) | Core Tip (884) | Full Article (HTML) (4888) | Figures (1-1) (168) | Tables (1-1) (136) | Full Article (PDF)-1208K (729) | Peer-Review Report-109K (219) | Answering Reviewers-11K (195) | Received: 06/03/2015 | Revised: 07/28/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (48) | Total Visits (12176) | Similar Articles (57) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (801) | Core Tip (847) | Full Article (HTML) (4215) | Tables (1-2) (149) | Full Article (PDF)-1257K (481) | Peer-Review Report-88K (275) | Answering Reviewers-63K (197) | Received: 04/28/2015 | Revised: 08/04/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (12399) | Similar Articles (2036) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (979) | Core Tip (839) | Full Article (HTML) (3358) | Tables (1-1) (143) | Full Article (PDF)-1087K (582) | Peer-Review Report-79K (166) | Answering Reviewers-210K (158) | Received: 04/18/2015 | Revised: 07/04/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (9929) | Similar Articles (803) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1029) | Core Tip (990) | Full Article (HTML) (3871) | Tables (1-3) (153) | Full Article (PDF)-1175K (575) | Peer-Review Report-111K (208) | Answering Reviewers-93K (332) | Received: 04/27/2015 | Revised: 08/22/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (11156) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (952) | Core Tip (908) | Full Article (HTML) (3875) | Tables (1-3) (159) | Full Article (PDF)-1244K (593) | Peer-Review Report-99K (171) | Answering Reviewers-103K (190) | Received: 06/29/2015 | Revised: 08/07/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (18) | Total Visits (11389) | Similar Articles (238) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (987) | Core Tip (887) | Full Article (HTML) (6252) | Figures (1-2) (253) | Tables (1-3) (158) | Full Article (PDF)-1435K (668) | Peer-Review Report-144K (197) | Answering Reviewers-91K (254) | Received: 03/20/2015 | Revised: 04/28/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (24) | Total Visits (13668) | Similar Articles (43) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1140) | Core Tip (1027) | Full Article (HTML) (7476) | Figures (1-1) (159) | Tables (1-3) (179) | Full Article (PDF)-1377K (1716) | Peer-Review Report-81K (244) | Answering Reviewers-192K (323) | Received: 06/28/2015 | Revised: 08/17/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (50) | Total Visits (16510) | Similar Articles (35) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (903) | Core Tip (945) | Full Article (HTML) (3349) | Tables (1-4) (146) | Full Article (PDF)-1160K (410) | Peer-Review Report-118K (165) | Answering Reviewers-450K (163) | Received: 07/23/2015 | Revised: 09/23/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (26) | Total Visits (9902) | Similar Articles (253) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (780) | Core Tip (847) | Full Article (HTML) (5597) | Figures (1-1) (154) | Full Article (PDF)-1069K (599) | Peer-Review Report-92K (155) | Answering Reviewers-105K (195) | Received: 03/30/2015 | Revised: 05/30/2015 | Accepted: 08/31/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (27) | Total Visits (12278) | Similar Articles (4) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (943) | Core Tip (1082) | Full Article (HTML) (7120) | Figures (1-6) (235) | Tables (1-1) (156) | Full Article (PDF)-1824K (756) | Peer-Review Report-99K (206) | Answering Reviewers-185K (6206) | Received: 08/12/2015 | Revised: 09/18/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (7) | Total Visits (20738) | Similar Articles (1542) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1000) | Core Tip (791) | Full Article (HTML) (6125) | Figures (1-3) (163) | Full Article (PDF)-1184K (814) | Peer-Review Report-91K (166) | Answering Reviewers-106K (226) | Received: 04/28/2015 | Revised: 07/27/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (78) | Total Visits (12680) | Similar Articles (1565) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1174) | Core Tip (1133) | Full Article (HTML) (21418) | Figures (1-2) (474) | Full Article (PDF)-1398K (2434) | Peer-Review Report-80K (306) | Answering Reviewers-172K (322) | Received: 02/24/2015 | Revised: 06/15/2015 | Accepted: 09/02/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (116) | Total Visits (32166) | Similar Articles (4) | Timeline of Article Publication (5) | Authors Evaluation (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (778) | Core Tip (711) | Full Article (HTML) (3922) | Tables (1-1) (133) | Full Article (PDF)-1093K (639) | Peer-Review Report-86K (128) | Answering Reviewers-106K (169) | Received: 04/28/2015 | Revised: 07/10/2015 | Accepted: 08/31/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (22) | Total Visits (10207) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (818) | Core Tip (770) | Full Article (HTML) (3661) | Figures (1-8) (192) | Tables (1-8) (150) | Full Article (PDF)-1292K (650) | Peer-Review Report-92K (178) | Answering Reviewers-36K (186) | Received: 04/27/2015 | Revised: 07/03/2015 | Accepted: 09/15/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (47) | Total Visits (10676) | Similar Articles (2040) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open