Abstract (2501) | Core Tip (2359) | Full Article (HTML) (23383) | Full Article (PDF)-814K (1595) | Audio-508K (118) | Peer-Review Report-67K (357) | Answering Reviewers-55K (314) | Received: 07/08/2015 | Revised: 08/14/2015 | Accepted: 03/09/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (190) | Total Visits (37047) | Similar Articles (94) | Timeline of Article Publication (5) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (1) | Open

Abstract (1650) | Core Tip (1439) | Full Article (HTML) (4398) | Tables (1-2) (519) | Full Article (PDF)-958K (779) | Audio-467K (25) | Peer-Review Report-103K (250) | Answering Reviewers-121K (377) | Received: 07/16/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (13793) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (2077) | Core Tip (1810) | Full Article (HTML) (8685) | Tables (1-2) (496) | Full Article (PDF)-982K (1428) | Audio-1293K (66) | Peer-Review Report-98K (277) | Answering Reviewers-117K (304) | Received: 07/28/2015 | Revised: 11/24/2015 | Accepted: 01/19/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (51) | Total Visits (22457) | Similar Articles (11) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1634) | Core Tip (1413) | Full Article (HTML) (5876) | Full Article (PDF)-880K (759) | Audio-1525K (64) | Peer-Review Report-96K (244) | Answering Reviewers-76K (391) | Received: 08/29/2015 | Revised: 10/30/2015 | Accepted: 02/16/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (61) | Total Visits (15635) | Similar Articles (2) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1728) | Core Tip (1602) | Full Article (HTML) (4990) | Figures (1-2) (541) | Tables (1-1) (493) | Full Article (PDF)-1007K (795) | Audio-462K (48) | Peer-Review Report-84K (331) | Answering Reviewers-69K (348) | Received: 08/15/2015 | Revised: 09/24/2015 | Accepted: 01/07/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (21) | Total Visits (17885) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1862) | Core Tip (1716) | Full Article (HTML) (4455) | Figures (1-2) (366) | Tables (1-3) (485) | Full Article (PDF)-882K (911) | Audio-1862K (68) | Peer-Review Report-122K (334) | Answering Reviewers-146K (358) | Received: 01/29/2016 | Revised: 03/22/2016 | Accepted: 04/11/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (19818) | Similar Articles (1) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1643) | Core Tip (1350) | Full Article (HTML) (4365) | Tables (1-4) (803) | Full Article (PDF)-968K (643) | Audio-578K (37) | Peer-Review Report-168K (258) | Answering Reviewers-311K (325) | Received: 07/26/2015 | Revised: 11/01/2015 | Accepted: 01/22/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (12) | Total Visits (16065) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1558) | Core Tip (1453) | Full Article (HTML) (4026) | Figures (1-1) (533) | Tables (1-2) (503) | Full Article (PDF)-904K (538) | Audio-404K (31) | Peer-Review Report-100K (272) | Answering Reviewers-917K (268) | Received: 01/14/2016 | Revised: 01/14/2016 | Accepted: 01/31/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (4) | Total Visits (15104) | Similar Articles (5) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (2183) | Core Tip (2480) | Full Article (HTML) (10334) | Figures (1-3) (452) | Tables (1-2) (625) | Full Article (PDF)-958K (1420) | Audio-576K (36) | Peer-Review Report-118K (376) | Answering Reviewers-452K (340) | Received: 07/29/2015 | Revised: 12/17/2015 | Accepted: 01/19/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (24307) | Similar Articles (6) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1625) | Core Tip (1590) | Full Article (HTML) (5607) | Figures (1-2) (718) | Tables (1-1) (570) | Full Article (PDF)-1024K (640) | Audio-289K (41) | Peer-Review Report-133K (337) | Answering Reviewers-90K (324) | Received: 01/29/2016 | Revised: 03/02/2016 | Accepted: 03/25/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (20) | Total Visits (18996) | Similar Articles (60) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1691) | Core Tip (1423) | Full Article (HTML) (4307) | Figures (1-4) (461) | Full Article (PDF)-1074K (578) | Audio-581K (29) | Peer-Review Report-133K (288) | Answering Reviewers-149K (384) | Received: 10/26/2015 | Revised: 01/19/2016 | Accepted: 03/14/2016 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (2) | Total Visits (14953) | Similar Articles (3) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open