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Abstract (1315) | Core Tip (1274) | Full Article (HTML) (5065) | Figures (1-1) (510) | Tables (1-1) (385) | Full Article (PDF)-2528K (591) | Peer-Review Report-163K (279) | Answering Reviewers-67K (311) | Received: 06/13/2013 | Revised: 08/07/2013 | Accepted: 08/20/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (10) | Total Visits (12367) | Similar Articles (3) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1353) | Core Tip (1237) | Full Article (HTML) (7540) | Figures (1-4) (853) | Tables (1-2) (412) | Full Article (PDF)-11451K (751) | Peer-Review Report-98K (335) | Answering Reviewers-43K (324) | Received: 03/14/2013 | Revised: 05/05/2013 | Accepted: 07/05/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (32) | Total Visits (15452) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1984) | Core Tip (1662) | Full Article (HTML) (21185) | Figures (1-1) (592) | Tables (1-1) (418) | Full Article (PDF)-5600K (1480) | Peer-Review Report-131K (309) | Answering Reviewers-85K (328) | Received: 06/24/2013 | Revised: 08/01/2013 | Accepted: 09/17/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (206) | Total Visits (31273) | Similar Articles (177) | Timeline of Article Publication (6) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

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Abstract (1301) | Core Tip (1733) | Full Article (HTML) (5066) | Figures (1-2) (544) | Tables (1-1) (413) | Full Article (PDF)-2130K (565) | Peer-Review Report-83K (229) | Answering Reviewers-25K (276) | Received: 07/01/2013 | Revised: 07/21/2013 | Accepted: 10/16/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (35) | Total Visits (12063) | Similar Articles (91) | Timeline of Article Publication (0) | Authors Evaluation (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1336) | Core Tip (1260) | Full Article (HTML) (7917) | Figures (1-2) (471) | Tables (1-1) (593) | Full Article (PDF)-7479K (935) | Peer-Review Report-95K (294) | Answering Reviewers-88K (268) | Received: 06/28/2013 | Revised: 07/13/2013 | Accepted: 08/17/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (45) | Total Visits (15827) | Similar Articles (48) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1259) | Core Tip (1327) | Full Article (HTML) (11591) | Figures (1-1) (430) | Tables (1-1) (415) | Full Article (PDF)-2249K (739) | Peer-Review Report-195K (268) | Answering Reviewers-395K (292) | Received: 05/16/2013 | Revised: 07/06/2013 | Accepted: 09/05/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (167) | Total Visits (18622) | Similar Articles (224) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1338) | Core Tip (1055) | Full Article (HTML) (5587) | Figures (1-4) (801) | Tables (1-3) (372) | Full Article (PDF)-3569K (513) | Peer-Review Report-96K (324) | Answering Reviewers-81K (309) | Received: 04/14/2013 | Revised: 05/23/2013 | Accepted: 08/01/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (6) | Total Visits (13153) | Similar Articles (29) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1222) | Core Tip (1126) | Full Article (HTML) (3767) | Figures (1-6) (510) | Tables (1-2) (387) | Full Article (PDF)-5491K (469) | Peer-Review Report-96K (252) | Answering Reviewers-104K (277) | Received: 04/17/2013 | Revised: 06/11/2013 | Accepted: 08/13/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (1) | Total Visits (10551) | Similar Articles (20) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1405) | Core Tip (1180) | Full Article (HTML) (4655) | Figures (1-10) (434) | Tables (1-1) (388) | Full Article (PDF)-6608K (476) | Peer-Review Report-94K (298) | Answering Reviewers-71K (234) | Received: 05/25/2013 | Revised: 08/27/2013 | Accepted: 09/18/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (11) | Total Visits (10977) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1279) | Core Tip (1118) | Full Article (HTML) (4197) | Figures (1-3) (441) | Tables (1-3) (785) | Full Article (PDF)-3832K (548) | Peer-Review Report-99K (256) | Answering Reviewers-127K (342) | Received: 06/24/2013 | Revised: 08/07/2013 | Accepted: 10/18/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (11) | Total Visits (11303) | Similar Articles (11) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open