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Abstract (1330) | Core Tip (1143) | Full Article (HTML) (3827) | Tables (1-2) (264) | Full Article (PDF)-958K (705) | Audio-467K (15) | Peer-Review Report-103K (198) | Answering Reviewers-121K (317) | Received: 07/16/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (11469) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1769) | Core Tip (1515) | Full Article (HTML) (7449) | Tables (1-2) (275) | Full Article (PDF)-982K (1102) | 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 (18961) | Similar Articles (11) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1352) | Core Tip (1184) | Full Article (HTML) (5222) | Full Article (PDF)-880K (656) | Audio-1525K (56) | Peer-Review Report-96K (181) | Answering Reviewers-76K (306) | Received: 08/29/2015 | Revised: 10/30/2015 | Accepted: 02/16/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (56) | Total Visits (13506) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1409) | Core Tip (1325) | Full Article (HTML) (4430) | Figures (1-2) (324) | Tables (1-1) (281) | Full Article (PDF)-1007K (730) | Audio-462K (42) | Peer-Review Report-84K (278) | Answering Reviewers-69K (294) | Received: 08/15/2015 | Revised: 09/24/2015 | Accepted: 01/07/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (14944) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1532) | Core Tip (1413) | Full Article (HTML) (3934) | Figures (1-2) (200) | Tables (1-3) (251) | Full Article (PDF)-882K (846) | Audio-1862K (48) | Peer-Review Report-122K (287) | Answering Reviewers-146K (297) | Received: 01/29/2016 | Revised: 03/22/2016 | Accepted: 04/11/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (16877) | Similar Articles (1) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1331) | Core Tip (1070) | Full Article (HTML) (3809) | Tables (1-4) (346) | Full Article (PDF)-968K (573) | Audio-578K (20) | Peer-Review Report-168K (209) | 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 (13353) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1240) | Core Tip (1142) | Full Article (HTML) (3432) | Figures (1-1) (267) | Tables (1-2) (263) | Full Article (PDF)-904K (466) | 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 (12425) | Similar Articles (5) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1815) | Core Tip (1971) | Full Article (HTML) (8772) | Figures (1-3) (260) | Tables (1-2) (287) | Full Article (PDF)-958K (1325) | Audio-576K (28) | Peer-Review Report-118K (315) | Answering Reviewers-452K (298) | Received: 07/29/2015 | Revised: 12/17/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (20308) | Similar Articles (6) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1298) | Core Tip (1277) | Full Article (HTML) (4835) | Figures (1-2) (408) | Tables (1-1) (270) | Full Article (PDF)-1024K (551) | Audio-289K (32) | Peer-Review Report-133K (256) | Answering Reviewers-90K (246) | Received: 01/29/2016 | Revised: 03/02/2016 | Accepted: 03/25/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (15858) | Similar Articles (58) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1376) | Core Tip (1125) | Full Article (HTML) (3795) | Figures (1-4) (294) | Full Article (PDF)-1074K (512) | 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 (12560) | Similar Articles (3) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open