Abstract (781) | Core Tip (812) | Full Article (HTML) (3697) | Full Article (PDF)-756K (749) | Full Article (Word)-139K (162) | Audio-1616K (9) | Peer-Review Report-80K (145) | Answering Reviewers-71K (285) | Received: 07/07/2015 | Revised: 07/24/2015 | Accepted: 10/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (15) | Total Visits (11711) | Similar Articles (672) | Timeline of Article Publication (0) | Authors Evaluation (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (974) | Core Tip (943) | Full Article (HTML) (6439) | Figures (1-7) (162) | Tables (1-2) (103) | Full Article (PDF)-3357K (922) | Full Article (Word)-2483K (348) | Audio-1819K (16) | Peer-Review Report-85K (192) | Answering Reviewers-162K (202) | Received: 03/01/2015 | Revised: 08/04/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (44) | Total Visits (15435) | Similar Articles (185) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1239) | Core Tip (1083) | Full Article (HTML) (8289) | Figures (1-6) (305) | Tables (1-2) (103) | Full Article (PDF)-2222K (1944) | Full Article (Word)-7551K (636) | Audio-2027K (80) | Peer-Review Report-72K (358) | Answering Reviewers-66K (566) | Received: 08/29/2015 | Revised: 10/14/2015 | Accepted: 11/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (55) | Total Visits (34141) | Similar Articles (8) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (930) | Core Tip (839) | Full Article (HTML) (2816) | Figures (1-2) (115) | Tables (1-2) (95) | Full Article (PDF)-1519K (402) | Full Article (Word)-2915K (288) | Audio-1220K (15) | Peer-Review Report-79K (175) | Answering Reviewers-128K (175) | Received: 04/08/2015 | Revised: 08/27/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (9141) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (746) | Core Tip (739) | Full Article (HTML) (3040) | Figures (1-3) (150) | Full Article (PDF)-1194K (477) | Full Article (Word)-2181K (197) | Audio-1020K (12) | Peer-Review Report-130K (170) | Answering Reviewers-443K (213) | Received: 03/03/2015 | Revised: 06/11/2015 | Accepted: 09/02/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (18) | Total Visits (10759) | Similar Articles (28) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (995) | Core Tip (768) | Full Article (HTML) (3721) | Figures (1-5) (174) | Tables (1-1) (88) | Full Article (PDF)-992K (742) | Full Article (Word)-853K (288) | Audio-723K (11) | Peer-Review Report-79K (191) | Answering Reviewers-70K (277) | Received: 07/31/2015 | Revised: 08/31/2015 | Accepted: 10/20/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (57) | Total Visits (13415) | Similar Articles (981) | Timeline of Article Publication (2) | Authors Evaluation (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (755) | Core Tip (772) | Full Article (HTML) (3386) | Figures (1-5) (135) | Full Article (PDF)-1128K (546) | Full Article (Word)-2400K (236) | Audio-710K (8) | Peer-Review Report-93K (184) | Answering Reviewers-245K (235) | Received: 01/10/2015 | Revised: 05/03/2015 | Accepted: 07/03/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (14) | Total Visits (11973) | Similar Articles (1576) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (793) | Core Tip (825) | Full Article (HTML) (3193) | Figures (1-5) (105) | Tables (1-1) (82) | Full Article (PDF)-1174K (580) | Full Article (Word)-988K (242) | Audio-850K (7) | Peer-Review Report-86K (195) | Answering Reviewers-69K (200) | Received: 04/29/2015 | Revised: 08/24/2015 | Accepted: 10/20/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (16) | Total Visits (10968) | Similar Articles (238) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (725) | Core Tip (687) | Full Article (HTML) (2936) | Figures (1-1) (96) | Tables (1-3) (87) | Full Article (PDF)-939K (457) | Full Article (Word)-946K (194) | Audio-358K (12) | Peer-Review Report-92K (128) | Answering Reviewers-168K (362) | Received: 05/24/2015 | Revised: 07/09/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (9497) | Similar Articles (33) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (899) | Core Tip (913) | Full Article (HTML) (3556) | Figures (1-1) (104) | Tables (1-3) (97) | Full Article (PDF)-886K (528) | Full Article (Word)-272K (322) | Audio-1970K (43) | Peer-Review Report-80K (220) | Answering Reviewers-195K (218) | Received: 05/29/2015 | Revised: 08/17/2015 | Accepted: 10/26/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (6) | Total Visits (12828) | Similar Articles (970) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (773) | Core Tip (647) | Full Article (HTML) (3874) | Figures (1-3) (125) | Tables (1-6) (90) | Full Article (PDF)-927K (423) | Full Article (Word)-1302K (265) | Audio-718K (27) | Peer-Review Report-98K (241) | Answering Reviewers-119K (201) | Received: 08/04/2015 | Revised: 09/20/2015 | Accepted: 11/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (11611) | Similar Articles (1) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (729) | Core Tip (813) | Full Article (HTML) (2594) | Figures (1-3) (111) | Tables (1-3) (96) | Full Article (PDF)-1031K (421) | Full Article (Word)-877K (246) | Audio-590K (14) | Peer-Review Report-99K (149) | Answering Reviewers-321K (260) | Received: 05/13/2015 | Revised: 07/21/2015 | Accepted: 10/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (9935) | Similar Articles (9) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (708) | Core Tip (638) | Full Article (HTML) (2697) | Figures (1-1) (100) | Tables (1-5) (90) | Full Article (PDF)-860K (543) | Full Article (Word)-401K (229) | Audio-483K (16) | Peer-Review Report-75K (163) | Answering Reviewers-55K (164) | Received: 06/05/2015 | Revised: 08/31/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (6) | Total Visits (9680) | Similar Articles (970) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (706) | Core Tip (692) | Full Article (HTML) (2843) | Figures (1-1) (107) | Tables (1-3) (98) | Full Article (PDF)-825K (566) | Full Article (Word)-223K (347) | Audio-478K (15) | Peer-Review Report-92K (213) | Answering Reviewers-122K (216) | Received: 05/14/2015 | Revised: 07/28/2015 | Accepted: 10/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (10) | Total Visits (10867) | Similar Articles (72) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (860) | Core Tip (843) | Full Article (HTML) (3683) | Figures (1-2) (129) | Tables (1-4) (85) | Full Article (PDF)-998K (506) | Full Article (Word)-1705K (294) | Audio-706K (10) | Peer-Review Report-82K (199) | Answering Reviewers-225K (239) | Received: 05/23/2015 | Revised: 07/07/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (9) | Total Visits (11465) | Similar Articles (970) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1250) | Core Tip (873) | Full Article (HTML) (4094) | Tables (1-5) (103) | Full Article (PDF)-813K (1036) | Full Article (Word)-182K (354) | Audio-6895K (104) | Peer-Review Report-81K (172) | Answering Reviewers-121K (154) | Received: 04/30/2015 | Revised: 07/27/2015 | Accepted: 10/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (47) | Total Visits (13339) | Similar Articles (135) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (859) | Core Tip (741) | Full Article (HTML) (2757) | Figures (1-4) (132) | Tables (1-2) (92) | Full Article (PDF)-953K (624) | Full Article (Word)-471K (260) | Audio-322K (6) | Peer-Review Report-74K (228) | Answering Reviewers-259K (181) | Received: 06/26/2015 | Revised: 07/30/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (29) | Total Visits (9936) | Similar Articles (46) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (871) | Core Tip (631) | Full Article (HTML) (2978) | Figures (1-3) (114) | Tables (1-1) (89) | Full Article (PDF)-900K (511) | Full Article (Word)-285K (235) | Audio-830K (25) | Peer-Review Report-81K (165) | Answering Reviewers-90K (159) | Received: 02/23/2015 | Revised: 04/13/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (9548) | Similar Articles (25) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (824) | Core Tip (759) | Full Article (HTML) (3045) | Figures (1-3) (202) | Tables (1-2) (167) | Full Article (PDF)-1036K (443) | Full Article (Word)-881K (372) | Audio-601K (20) | Peer-Review Report-79K (186) | Answering Reviewers-63K (189) | Received: 06/08/2015 | Revised: 07/17/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (2) | Total Visits (9361) | Similar Articles (335) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (724) | Core Tip (691) | Full Article (HTML) (3185) | Tables (1-5) (106) | Full Article (PDF)-770K (418) | Full Article (Word)-184K (261) | Audio-312K (9) | Peer-Review Report-71K (174) | Answering Reviewers-70K (188) | Received: 06/12/2015 | Revised: 09/09/2015 | Accepted: 11/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (18) | Total Visits (10287) | Similar Articles (120) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (719) | Core Tip (721) | Full Article (HTML) (4473) | Figures (1-7) (84) | Tables (1-3) (109) | Full Article (PDF)-935K (863) | Full Article (Word)-693K (285) | Audio-803K (11) | Peer-Review Report-84K (208) | Answering Reviewers-98K (195) | Supplementary Material-2013K (244) | Received: 05/21/2015 | Revised: 07/22/2015 | Accepted: 09/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (65) | Total Visits (13138) | Similar Articles (598) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (698) | Core Tip (688) | Full Article (HTML) (3908) | Figures (1-3) (92) | Tables (1-1) (140) | Full Article (PDF)-937K (670) | Full Article (Word)-640K (323) | Audio-794K (14) | Peer-Review Report-104K (153) | Answering Reviewers-117K (136) | Received: 04/28/2015 | Revised: 09/14/2015 | Accepted: 10/13/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (31) | Total Visits (11296) | Similar Articles (87) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (876) | Core Tip (848) | Full Article (HTML) (2892) | Figures (1-5) (143) | Full Article (PDF)-918K (411) | Full Article (Word)-1182K (220) | Audio-1506K (15) | Peer-Review Report-103K (129) | Answering Reviewers-93K (147) | Received: 04/19/2015 | Revised: 06/15/2015 | Accepted: 09/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (3) | Total Visits (8725) | Similar Articles (5) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (933) | Core Tip (758) | Full Article (HTML) (4366) | Full Article (PDF)-600K (735) | Full Article (Word)-108K (237) | Audio-633K (7) | Peer-Review Report-81K (225) | Answering Reviewers-29K (290) | Received: 05/28/2015 | Accepted: 11/09/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (166) | Total Visits (11751) | Similar Articles (530) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open