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Abstract (1162) | Core Tip (1226) | Full Article (HTML) (10086) | Figures (1-1) (352) | Tables (1-1) (344) | Full Article (PDF)-2249K (658) | Peer-Review Report-195K (229) | Answering Reviewers-395K (254) | Received: 05/16/2013 | Revised: 07/06/2013 | Accepted: 09/05/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (165) | Total Visits (16475) | Similar Articles (219) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1227) | Core Tip (950) | Full Article (HTML) (5284) | Figures (1-4) (689) | Tables (1-3) (296) | Full Article (PDF)-3569K (449) | Peer-Review Report-96K (289) | Answering Reviewers-81K (285) | Received: 04/14/2013 | Revised: 05/23/2013 | Accepted: 08/01/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (6) | Total Visits (12165) | Similar Articles (28) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1122) | Core Tip (1027) | Full Article (HTML) (3613) | Figures (1-6) (429) | Tables (1-2) (310) | Full Article (PDF)-5491K (444) | Peer-Review Report-96K (227) | Answering Reviewers-104K (257) | Received: 04/17/2013 | Revised: 06/11/2013 | Accepted: 08/13/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (1) | Total Visits (9824) | Similar Articles (19) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1301) | Core Tip (1090) | Full Article (HTML) (4469) | Figures (1-10) (350) | Tables (1-1) (318) | Full Article (PDF)-6608K (427) | Peer-Review Report-94K (268) | Answering Reviewers-71K (211) | Received: 05/25/2013 | Revised: 08/27/2013 | Accepted: 09/18/2013 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (11) | Total Visits (10215) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

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