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Abstract (2924) | Core Tip (1593) | Full Article (HTML) (5269) | Figures (1-4) (583) | Tables (1-1) (503) | Full Article (PDF)-1432K (765) | Peer-Review Report-85K (440) | Answering Reviewers-68K (373) | Received: 01/29/2015 | Revised: 03/30/2015 | Accepted: 06/16/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (25) | Total Visits (19492) | Similar Articles (102) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1312) | Core Tip (1156) | Full Article (HTML) (4257) | Figures (1-2) (548) | Full Article (PDF)-2908K (574) | Peer-Review Report-123K (344) | Answering Reviewers-74K (257) | Received: 01/27/2015 | Revised: 04/20/2015 | Accepted: 05/18/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (8) | Total Visits (12777) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1466) | Core Tip (1842) | Full Article (HTML) (8021) | Figures (1-9) (621) | Full Article (PDF)-2457K (793) | Peer-Review Report-109K (308) | Answering Reviewers-73K (398) | Received: 05/12/2015 | Revised: 07/01/2015 | Accepted: 07/27/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (9) | Total Visits (18448) | Similar Articles (0) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1265) | Core Tip (1227) | Full Article (HTML) (7316) | Figures (1-3) (452) | Full Article (PDF)-1892K (622) | Peer-Review Report-99K (289) | Answering Reviewers-186K (436) | Received: 04/20/2015 | Revised: 06/19/2015 | Accepted: 07/14/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (14) | Total Visits (17097) | Similar Articles (171) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1695) | Core Tip (1618) | Full Article (HTML) (10469) | Figures (1-3) (853) | Full Article (PDF)-1285K (1112) | Peer-Review Report-89K (302) | Answering Reviewers-62K (308) | Received: 03/27/2015 | Revised: 05/08/2015 | Accepted: 07/17/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (65) | Total Visits (21342) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (1) | Open

Abstract (1602) | Core Tip (1430) | Full Article (HTML) (7328) | Figures (1-3) (428) | Tables (1-3) (573) | Full Article (PDF)-1516K (932) | Peer-Review Report-133K (354) | Answering Reviewers-125K (274) | Received: 04/21/2015 | Revised: 05/26/2015 | Accepted: 07/14/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (41) | Total Visits (17748) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1354) | Core Tip (1215) | Full Article (HTML) (5523) | Figures (1-1) (484) | Full Article (PDF)-1028K (542) | Peer-Review Report-173K (278) | Answering Reviewers-162K (250) | Received: 04/27/2015 | Revised: 05/31/2015 | Accepted: 07/02/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (11) | Total Visits (14441) | Similar Articles (9) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1896) | Core Tip (1636) | Full Article (HTML) (16579) | Figures (1-4) (541) | Full Article (PDF)-1349K (1257) | Peer-Review Report-93K (351) | Answering Reviewers-68K (327) | Received: 04/19/2015 | Revised: 05/26/2015 | Accepted: 07/23/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (127) | Total Visits (27962) | Similar Articles (1804) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1908) | Core Tip (1524) | Full Article (HTML) (12915) | Figures (1-3) (473) | Tables (1-6) (518) | Full Article (PDF)-2290K (1383) | Peer-Review Report-126K (353) | Answering Reviewers-343K (407) | Received: 04/11/2014 | Revised: 03/13/2015 | Accepted: 05/28/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (139) | Total Visits (25375) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1955) | Core Tip (1773) | Full Article (HTML) (11660) | Figures (1-1) (447) | Tables (1-1) (453) | Full Article (PDF)-978K (1229) | Peer-Review Report-90K (384) | Answering Reviewers-28K (316) | Received: 01/29/2015 | Revised: 05/15/2015 | Accepted: 06/19/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (243) | Total Visits (26985) | Similar Articles (168) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1258) | Core Tip (1294) | Full Article (HTML) (3859) | Figures (1-1) (449) | Full Article (PDF)-966K (443) | Peer-Review Report-120K (276) | Answering Reviewers-134K (225) | Received: 03/11/2015 | Revised: 05/04/2015 | Accepted: 06/16/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (1) | Total Visits (12283) | Similar Articles (1) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1457) | Core Tip (1259) | Full Article (HTML) (4624) | Figures (1-1) (437) | Tables (1-1) (409) | Full Article (PDF)-960K (597) | Peer-Review Report-135K (262) | Answering Reviewers-360K (253) | Received: 01/28/2015 | Revised: 04/27/2015 | Accepted: 05/18/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (11) | Total Visits (13668) | Similar Articles (100) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1633) | Core Tip (1611) | Full Article (HTML) (11322) | Figures (1-4) (504) | Tables (1-1) (391) | Full Article (PDF)-1966K (1318) | Peer-Review Report-128K (362) | Answering Reviewers-112K (320) | Received: 04/27/2015 | Revised: 05/30/2015 | Accepted: 07/23/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (173) | Total Visits (22164) | Similar Articles (194) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1876) | Core Tip (2142) | Full Article (HTML) (4512) | Figures (1-5) (496) | Full Article (PDF)-1208K (560) | Peer-Review Report-81K (287) | Answering Reviewers-51K (291) | Received: 01/24/2015 | Revised: 03/25/2015 | Accepted: 06/11/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (19628) | Similar Articles (123) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1493) | Core Tip (1395) | Full Article (HTML) (5229) | Figures (1-11) (481) | Tables (1-2) (480) | Full Article (PDF)-2591K (486) | Peer-Review Report-110K (247) | Answering Reviewers-190K (293) | Received: 02/02/2015 | Revised: 05/06/2015 | Accepted: 06/11/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (18371) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1437) | Core Tip (1259) | Full Article (HTML) (7339) | Figures (1-4) (559) | Full Article (PDF)-1904K (658) | Peer-Review Report-100K (241) | Answering Reviewers-175K (254) | Received: 03/05/2015 | Revised: 05/05/2015 | Accepted: 07/02/2015 | RCA | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (78) | Total Visits (16389) | Similar Articles (2) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open