Abstract (1734) | Core Tip (1633) | Full Article (HTML) (9099) | Figures (1-1) (406) | Tables (1-1) (396) | Full Article (PDF)-945K (937) | Audio-1943K (33) | Peer-Review Report-109K (487) | Answering Reviewers-63K (426) | Received: 05/26/2015 | Revised: 07/07/2015 | Accepted: 10/13/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (64) | Total Visits (23517) | Similar Articles (360) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1380) | Core Tip (1270) | Full Article (HTML) (2990) | Full Article (PDF)-763K (401) | Audio-322K (11) | Peer-Review Report-105K (240) | Answering Reviewers-275K (239) | Received: 04/16/2015 | Revised: 07/14/2015 | Accepted: 09/18/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (11405) | Similar Articles (11) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1815) | Core Tip (1644) | Full Article (HTML) (16851) | Tables (1-1) (453) | Full Article (PDF)-984K (2038) | Audio-975K (26) | Peer-Review Report-69K (325) | Answering Reviewers-67K (283) | Received: 08/20/2014 | Revised: 12/02/2014 | Accepted: 11/04/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (153) | Total Visits (28584) | Similar Articles (2) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1898) | Core Tip (1666) | Full Article (HTML) (12834) | Tables (1-1) (471) | Full Article (PDF)-982K (1123) | Audio-4440K (58) | Peer-Review Report-121K (382) | Answering Reviewers-510K (324) | Received: 09/02/2015 | Revised: 10/21/2015 | Accepted: 12/11/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (21) | Total Visits (26211) | Similar Articles (4) | Timeline of Article Publication (5) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1578) | Core Tip (1586) | Full Article (HTML) (8615) | Tables (1-2) (949) | Full Article (PDF)-978K (1109) | Audio-1206K (30) | Peer-Review Report-79K (375) | Answering Reviewers-324K (398) | Received: 06/09/2015 | Revised: 08/27/2015 | Accepted: 10/27/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (94) | Total Visits (34086) | Similar Articles (8) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1736) | Core Tip (1505) | Full Article (HTML) (9698) | Full Article (PDF)-883K (1059) | Audio-1203K (28) | Peer-Review Report-80K (287) | Answering Reviewers-120K (371) | Received: 06/12/2015 | Revised: 09/08/2015 | Accepted: 10/19/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (16) | Total Visits (19627) | Similar Articles (27) | Timeline of Article Publication (6) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1217) | Core Tip (1239) | Full Article (HTML) (3677) | Tables (1-3) (414) | Full Article (PDF)-974K (531) | Audio-149K (29) | Peer-Review Report-114K (257) | Answering Reviewers-133K (228) | Received: 06/24/2015 | Revised: 08/31/2015 | Accepted: 10/08/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (13739) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1402) | Core Tip (1426) | Full Article (HTML) (4189) | Figures (1-2) (279) | Tables (1-3) (278) | Full Article (PDF)-1163K (626) | Audio-6127K (24) | Peer-Review Report-108K (337) | Answering Reviewers-109K (214) | Received: 04/14/2015 | Revised: 06/18/2015 | Accepted: 10/13/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (9) | Total Visits (15485) | Similar Articles (34) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1398) | Core Tip (1480) | Full Article (HTML) (2963) | Tables (1-5) (421) | Full Article (PDF)-942K (443) | Audio-596K (22) | Peer-Review Report-93K (266) | Answering Reviewers-218K (211) | Received: 05/07/2015 | Revised: 07/18/2015 | Accepted: 09/28/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (12361) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1561) | Core Tip (1444) | Full Article (HTML) (10951) | Tables (1-1) (704) | Full Article (PDF)-969K (1140) | Audio-430K (39) | Peer-Review Report-105K (279) | Answering Reviewers-130K (257) | Received: 06/12/2015 | Revised: 09/23/2015 | Accepted: 11/11/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (113) | Total Visits (22514) | Similar Articles (195) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open