Abstract (911) | Core Tip (833) | Full Article (HTML) (4747) | Figures (1-5) (105) | Tables (1-1) (84) | Full Article (PDF)-1080K (718) | Full Article (Word)-1491K (309) | Audio-737K (28) | Peer-Review Report-102K (220) | Answering Reviewers-85K (778) | Received: 12/24/2015 | Revised: 02/23/2016 | Accepted: 03/14/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (17) | Total Visits (13952) | Similar Articles (316) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (1136) | Core Tip (824) | Full Article (HTML) (5886) | Figures (1-4) (123) | Tables (1-2) (127) | Full Article (PDF)-1462K (1721) | Full Article (Word)-586K (304) | Audio-594K (29) | Peer-Review Report-116K (248) | Answering Reviewers-133K (229) | Received: 01/27/2016 | Revised: 03/07/2016 | Accepted: 03/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (15) | Total Visits (13727) | Similar Articles (33) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (956) | Core Tip (881) | Full Article (HTML) (6567) | Tables (1-5) (114) | Full Article (PDF)-1020K (1104) | Full Article (Word)-401K (379) | Audio-654K (38) | Peer-Review Report-152K (298) | Answering Reviewers-562K (300) | Supplementary Material-80K (302) | Received: 01/19/2016 | Revised: 03/05/2016 | Accepted: 03/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (46) | Total Visits (16649) | Similar Articles (28) | Timeline of Article Publication (0) | Authors Evaluation (3) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (765) | Core Tip (726) | Full Article (HTML) (3083) | Figures (1-2) (127) | Tables (1-1) (98) | Full Article (PDF)-781K (634) | Full Article (Word)-274K (387) | Audio-715K (17) | Peer-Review Report-127K (169) | Answering Reviewers-96K (151) | Received: 12/29/2015 | Accepted: 03/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (9) | Total Visits (9401) | Similar Articles (343) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (952) | Core Tip (900) | Full Article (HTML) (4714) | Figures (1-3) (101) | Tables (1-1) (92) | Full Article (PDF)-983K (933) | Full Article (Word)-850K (252) | Audio-1068K (16) | Peer-Review Report-96K (199) | Answering Reviewers-126K (256) | Received: 12/22/2015 | Revised: 01/29/2016 | Accepted: 03/02/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (65) | Total Visits (11528) | Similar Articles (167) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (979) | Core Tip (755) | Full Article (HTML) (5056) | Figures (1-8) (165) | Tables (1-1) (99) | Full Article (PDF)-1184K (684) | Full Article (Word)-1255K (359) | Audio-782K (28) | Peer-Review Report-103K (193) | Answering Reviewers-379K (440) | Received: 09/08/2015 | Revised: 10/26/2015 | Accepted: 12/08/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (65) | Total Visits (14747) | Similar Articles (143) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (755) | Core Tip (765) | Full Article (HTML) (2789) | Figures (1-5) (103) | Tables (1-1) (94) | Full Article (PDF)-999K (385) | Full Article (Word)-518K (281) | Audio-1103K (46) | Peer-Review Report-93K (157) | Answering Reviewers-51K (158) | Received: 11/29/2015 | Revised: 12/30/2015 | Accepted: 01/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (13) | Total Visits (9008) | Similar Articles (3) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (929) | Core Tip (847) | Full Article (HTML) (3683) | Figures (1-8) (113) | Full Article (PDF)-1797K (520) | Full Article (Word)-1802K (267) | Audio-343K (14) | Peer-Review Report-86K (170) | Answering Reviewers-107K (207) | Received: 10/24/2015 | Revised: 12/06/2015 | Accepted: 12/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (19) | Total Visits (12557) | Similar Articles (841) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (855) | Core Tip (811) | Full Article (HTML) (3932) | Figures (1-5) (99) | Full Article (PDF)-1368K (673) | Full Article (Word)-1427K (255) | Audio-1326K (9) | Peer-Review Report-125K (223) | Answering Reviewers-255K (253) | Received: 01/14/2016 | Accepted: 02/22/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (40) | Total Visits (13203) | Similar Articles (65) | Timeline of Article Publication (4) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (840) | Core Tip (794) | Full Article (HTML) (3554) | Figures (1-10) (113) | Full Article (PDF)-2834K (456) | Full Article (Word)-1615K (272) | Audio-1295K (11) | Peer-Review Report-82K (166) | Answering Reviewers-143K (166) | Received: 05/23/2015 | Revised: 11/10/2015 | Accepted: 12/14/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (7) | Total Visits (11305) | Similar Articles (970) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (926) | Core Tip (781) | Full Article (HTML) (3274) | Tables (1-3) (96) | Full Article (PDF)-846K (411) | Full Article (Word)-280K (202) | Audio-942K (10) | Peer-Review Report-113K (137) | Answering Reviewers-172K (152) | Received: 12/11/2015 | Revised: 01/14/2016 | Accepted: 01/30/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (1) | Total Visits (10454) | Similar Articles (52) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (2118) | Core Tip (1043) | Full Article (HTML) (10951) | Figures (1-5) (142) | Tables (1-2) (98) | Full Article (PDF)-1416K (1408) | Full Article (Word)-471K (381) | Audio-2092K (19) | Peer-Review Report-109K (308) | Answering Reviewers-123K (353) | Received: 10/29/2015 | Revised: 01/07/2016 | Accepted: 01/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (92) | Total Visits (22966) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (926) | Core Tip (832) | Full Article (HTML) (4778) | Figures (1-2) (348) | Tables (1-4) (93) | Full Article (PDF)-1465K (566) | Full Article (Word)-1642K (308) | Audio-552K (21) | Peer-Review Report-90K (232) | Answering Reviewers-85K (189) | Supplementary Material-130K (227) | Received: 10/20/2015 | Revised: 12/02/2015 | Accepted: 01/18/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (21) | Total Visits (13942) | Similar Articles (1076) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (811) | Core Tip (759) | Full Article (HTML) (3998) | Figures (1-2) (218) | Tables (1-4) (88) | Full Article (PDF)-1152K (502) | Full Article (Word)-2610K (212) | Audio-2068K (21) | Peer-Review Report-85K (154) | Answering Reviewers-102K (188) | Received: 11/08/2015 | Revised: 12/13/2015 | Accepted: 01/11/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (18) | Total Visits (11746) | Similar Articles (0) | Timeline of Article Publication (1) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (893) | Core Tip (907) | Full Article (HTML) (3874) | Figures (1-2) (95) | Tables (1-1) (88) | Full Article (PDF)-865K (662) | Full Article (Word)-272K (246) | Audio-1642K (11) | Peer-Review Report-92K (222) | Answering Reviewers-87K (206) | Received: 07/01/2015 | Revised: 10/27/2015 | Accepted: 12/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (32) | Total Visits (13584) | Similar Articles (1501) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (909) | Core Tip (791) | Full Article (HTML) (3091) | Figures (1-4) (107) | Tables (1-2) (105) | Full Article (PDF)-973K (741) | Full Article (Word)-666K (257) | Audio-357K (17) | Peer-Review Report-132K (233) | Answering Reviewers-94K (173) | Supplementary Material-43K (179) | Received: 12/16/2015 | Revised: 01/26/2016 | Accepted: 02/22/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (45) | Total Visits (12217) | Similar Articles (970) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (960) | Core Tip (870) | Full Article (HTML) (3437) | Figures (1-1) (91) | Tables (1-4) (98) | Full Article (PDF)-924K (714) | Full Article (Word)-303K (269) | Audio-806K (10) | Peer-Review Report-120K (194) | Answering Reviewers-77K (184) | Received: 12/10/2015 | Revised: 01/18/2016 | Accepted: 02/22/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (42) | Total Visits (11009) | Similar Articles (23) | Timeline of Article Publication (2) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (721) | Core Tip (765) | Full Article (HTML) (3401) | Figures (1-2) (120) | Tables (1-1) (91) | Full Article (PDF)-791K (406) | Full Article (Word)-472K (169) | Audio-921K (7) | Peer-Review Report-65K (122) | Answering Reviewers-29K (142) | Received: 08/27/2015 | Revised: 10/14/2015 | Accepted: 12/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (6) | Total Visits (8556) | Similar Articles (4) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (924) | Core Tip (828) | Full Article (HTML) (4069) | Figures (1-2) (89) | Full Article (PDF)-821K (781) | Full Article (Word)-535K (250) | Audio-589K (15) | Peer-Review Report-130K (183) | Answering Reviewers-346K (207) | Received: 10/15/2015 | Revised: 11/30/2015 | Accepted: 12/30/2015 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (7) | Total Visits (11433) | Similar Articles (0) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (903) | Core Tip (805) | Full Article (HTML) (3797) | Figures (1-3) (130) | Full Article (PDF)-1090K (500) | Full Article (Word)-2118K (258) | Audio-969K (19) | Peer-Review Report-83K (158) | Answering Reviewers-78K (149) | Received: 12/12/2015 | Revised: 12/25/2015 | Accepted: 01/11/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (5) | Total Visits (10835) | Similar Articles (39) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open

Abstract (878) | Core Tip (768) | Full Article (HTML) (2188) | Full Article (PDF)-573K (429) | Full Article (Word)-169K (289) | Audio-1278K (15) | Peer-Review Report-122K (156) | Answering Reviewers-62K (176) | Received: 12/15/2015 | Revised: 01/05/2016 | Accepted: 01/30/2016 | PubMed Central | PubMed | CrossRef | Google Scholar | Times Cited (0) | Total Visits (7846) | Similar Articles (333) | Timeline of Article Publication (0) | Article Quality Tracking (0) | What about the content of this article? (0) | Cite |  (0) | Open