Abstract (2169) | Core Tip (1941) | Full Article (HTML) (20179) | Full Article (PDF)-814K (1441) | Audio-508K (58) | Peer-Review Report-67K (265) | Answering Reviewers-55K (238) | Received: 07/08/2015 | Revised: 08/14/2015 | Accepted: 03/09/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (138) | Total Visits (31908) | Similar Articles (57) | Timeline of Article Publication (5) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (1) | Open

Abstract (1339) | Core Tip (1149) | Full Article (HTML) (3853) | Tables (1-2) (275) | Full Article (PDF)-958K (707) | Audio-467K (15) | Peer-Review Report-103K (201) | Answering Reviewers-121K (320) | Received: 07/16/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (11544) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1776) | Core Tip (1519) | Full Article (HTML) (7462) | Tables (1-2) (278) | Full Article (PDF)-982K (1105) | Audio-1293K (44) | Peer-Review Report-98K (213) | Answering Reviewers-117K (226) | Received: 07/28/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (48) | Total Visits (19010) | Similar Articles (11) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1356) | Core Tip (1187) | Full Article (HTML) (5233) | Full Article (PDF)-880K (660) | Audio-1525K (56) | Peer-Review Report-96K (182) | Answering Reviewers-76K (307) | Received: 08/29/2015 | Revised: 10/30/2015 | Accepted: 02/16/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (56) | Total Visits (13533) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1419) | Core Tip (1330) | Full Article (HTML) (4437) | Figures (1-2) (331) | Tables (1-1) (286) | Full Article (PDF)-1007K (732) | Audio-462K (42) | Peer-Review Report-84K (279) | Answering Reviewers-69K (296) | Received: 08/15/2015 | Revised: 09/24/2015 | Accepted: 01/07/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (15010) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1542) | Core Tip (1420) | Full Article (HTML) (3943) | Figures (1-2) (203) | Tables (1-3) (256) | Full Article (PDF)-882K (850) | Audio-1862K (48) | Peer-Review Report-122K (289) | Answering Reviewers-146K (300) | Received: 01/29/2016 | Revised: 03/22/2016 | Accepted: 04/11/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (16949) | Similar Articles (1) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1336) | Core Tip (1076) | Full Article (HTML) (3818) | Tables (1-4) (354) | Full Article (PDF)-968K (575) | Audio-578K (20) | Peer-Review Report-168K (210) | Answering Reviewers-311K (277) | Received: 07/26/2015 | Revised: 11/01/2015 | Accepted: 01/22/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (10) | Total Visits (13392) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1250) | Core Tip (1150) | Full Article (HTML) (3445) | Figures (1-1) (276) | Tables (1-2) (270) | Full Article (PDF)-904K (470) | Audio-404K (21) | Peer-Review Report-100K (228) | Answering Reviewers-917K (215) | Received: 01/14/2016 | Revised: 01/14/2016 | Accepted: 01/31/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (12483) | Similar Articles (5) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1826) | Core Tip (1989) | Full Article (HTML) (8892) | Figures (1-3) (263) | Tables (1-2) (292) | Full Article (PDF)-958K (1329) | Audio-576K (28) | Peer-Review Report-118K (316) | Answering Reviewers-452K (299) | Received: 07/29/2015 | Revised: 12/17/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (20496) | Similar Articles (6) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1304) | Core Tip (1285) | Full Article (HTML) (4858) | Figures (1-2) (421) | Tables (1-1) (279) | Full Article (PDF)-1024K (553) | Audio-289K (32) | Peer-Review Report-133K (257) | Answering Reviewers-90K (247) | Received: 01/29/2016 | Revised: 03/02/2016 | Accepted: 03/25/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (15932) | Similar Articles (58) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1387) | Core Tip (1134) | Full Article (HTML) (3818) | Figures (1-4) (297) | Full Article (PDF)-1074K (515) | Audio-581K (23) | Peer-Review Report-133K (237) | Answering Reviewers-149K (300) | Received: 10/26/2015 | Revised: 01/19/2016 | Accepted: 03/14/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (2) | Total Visits (12637) | Similar Articles (3) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open