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Abstract (1437) | Core Tip (1231) | Full Article (HTML) (3991) | Tables (1-2) (355) | Full Article (PDF)-958K (720) | Audio-467K (15) | Peer-Review Report-103K (213) | Answering Reviewers-121K (334) | Received: 07/16/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (12110) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1880) | Core Tip (1604) | Full Article (HTML) (7784) | Tables (1-2) (342) | Full Article (PDF)-982K (1122) | Audio-1293K (45) | Peer-Review Report-98K (223) | Answering Reviewers-117K (235) | Received: 07/28/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (48) | Total Visits (19833) | Similar Articles (11) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1447) | Core Tip (1264) | Full Article (HTML) (5416) | Full Article (PDF)-880K (673) | Audio-1525K (60) | Peer-Review Report-96K (201) | Answering Reviewers-76K (327) | Received: 08/29/2015 | Revised: 10/30/2015 | Accepted: 02/16/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (56) | Total Visits (14073) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1512) | Core Tip (1416) | Full Article (HTML) (4595) | Figures (1-2) (407) | Tables (1-1) (343) | Full Article (PDF)-1007K (746) | Audio-462K (44) | Peer-Review Report-84K (291) | Answering Reviewers-69K (310) | Received: 08/15/2015 | Revised: 09/24/2015 | Accepted: 01/07/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (15745) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1642) | Core Tip (1506) | Full Article (HTML) (4120) | Figures (1-2) (256) | Tables (1-3) (340) | Full Article (PDF)-882K (858) | Audio-1862K (48) | Peer-Review Report-122K (297) | Answering Reviewers-146K (315) | Received: 01/29/2016 | Revised: 03/22/2016 | Accepted: 04/11/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (17735) | Similar Articles (1) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1423) | Core Tip (1158) | Full Article (HTML) (3973) | Tables (1-4) (493) | Full Article (PDF)-968K (586) | Audio-578K (22) | Peer-Review Report-168K (224) | Answering Reviewers-311K (283) | Received: 07/26/2015 | Revised: 11/01/2015 | Accepted: 01/22/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (14084) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1337) | Core Tip (1241) | Full Article (HTML) (3599) | Figures (1-1) (353) | Tables (1-2) (345) | Full Article (PDF)-904K (485) | Audio-404K (29) | Peer-Review Report-100K (236) | Answering Reviewers-917K (224) | Received: 01/14/2016 | Revised: 01/14/2016 | Accepted: 01/31/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (13167) | Similar Articles (5) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1924) | Core Tip (2141) | Full Article (HTML) (9218) | Figures (1-3) (316) | Tables (1-2) (371) | Full Article (PDF)-958K (1346) | Audio-576K (28) | Peer-Review Report-118K (328) | Answering Reviewers-452K (307) | Received: 07/29/2015 | Revised: 12/17/2015 | Accepted: 01/19/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (21426) | Similar Articles (6) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1387) | Core Tip (1366) | Full Article (HTML) (5049) | Figures (1-2) (497) | Tables (1-1) (358) | Full Article (PDF)-1024K (571) | Audio-289K (32) | Peer-Review Report-133K (270) | Answering Reviewers-90K (257) | Received: 01/29/2016 | Revised: 03/02/2016 | Accepted: 03/25/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (16668) | Similar Articles (59) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1477) | Core Tip (1215) | Full Article (HTML) (3960) | Figures (1-4) (346) | Full Article (PDF)-1074K (528) | Audio-581K (24) | Peer-Review Report-133K (244) | Answering Reviewers-149K (308) | Received: 10/26/2015 | Revised: 01/19/2016 | Accepted: 03/14/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (2) | Total Visits (13218) | Similar Articles (3) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open