Provider Experience and the Comparative Safety of Laparoscopic and Open Colectomy.

Comorbidity measures for use with administrative data. Med Care (1998) 46.67

Hospital volume and surgical mortality in the United States. N Engl J Med (2002) 25.79

A comparison of laparoscopically assisted and open colectomy for colon cancer. N Engl J Med (2004) 19.45

Impact of formal continuing medical education: do conferences, workshops, rounds, and other traditional continuing education activities change physician behavior or health care outcomes? JAMA (1999) 13.39

Analysis of observational studies in the presence of treatment selection bias: effects of invasive cardiac management on AMI survival using propensity score and instrumental variable methods. JAMA (2007) 10.62

Laparoscopic surgery versus open surgery for colon cancer: short-term outcomes of a randomised trial. Lancet Oncol (2005) 8.98

Trends in hospital volume and operative mortality for high-risk surgery. N Engl J Med (2011) 6.90

Short-term quality-of-life outcomes following laparoscopic-assisted colectomy vs open colectomy for colon cancer: a randomized trial. JAMA (2002) 6.21

Two-stage residual inclusion estimation: addressing endogeneity in health econometric modeling. J Health Econ (2007) 5.61

Econometrics in outcomes research: the use of instrumental variables. Annu Rev Public Health (1998) 5.55

Laparoscopic colectomy for cancer is not inferior to open surgery based on 5-year data from the COST Study Group trial. Ann Surg (2007) 5.30

Comparison of the Elixhauser and Charlson/Deyo methods of comorbidity measurement in administrative data. Med Care (2004) 5.12

Long-term survival following partial vs radical nephrectomy among older patients with early-stage kidney cancer. JAMA (2012) 4.30

Identifying complications of care using administrative data. Med Care (1994) 4.01

Evaluation of the learning curve in laparoscopic colorectal surgery: comparison of right-sided and left-sided resections. Ann Surg (2005) 3.69

Association between stroke center hospitalization for acute ischemic stroke and mortality. JAMA (2011) 3.68

A comparison of clinical registry versus administrative claims data for reporting of 30-day surgical complications. Ann Surg (2012) 2.72

Potential bias of instrumental variable analyses for observational comparative effectiveness research. Ann Intern Med (2014) 2.63

Randomized clinical trial of laparoscopic versus open left colonic resection. Br J Surg (2010) 2.62

Laparoscopic versus open colorectal surgery: a randomized trial on short-term outcome. Ann Surg (2002) 2.50

A prospective, randomized, single-blind comparison of laparoscopic versus open sigmoid colectomy for diverticulitis. Ann Surg (2010) 2.34

The use of linear instrumental variables methods in health services research and health economics: a cautionary note. Health Serv Res (2008) 1.73

Laparoscopic approach significantly reduces surgical site infections after colorectal surgery: data from national surgical quality improvement program. J Am Coll Surg (2010) 1.50

Hospital-level outcomes associated with laparoscopic colectomy for cancer in the minimally invasive era. J Gastrointest Surg (2012) 1.43

Utilization of laparoscopic colectomy in the United States before and after the clinical outcomes of surgical therapy study group trial. Ann Surg (2011) 1.22

Improved short-term outcomes of laparoscopic versus open resection for colon and rectal cancer in an area health service: a multicenter study. Dis Colon Rectum (2012) 1.20

Nationwide trends in laparoscopic colectomy from 2000 to 2004. Surg Endosc (2008) 1.19

Laparoscopic-assisted vs. open colectomy for cancer: comparison of short-term outcomes from 121 hospitals. J Gastrointest Surg (2008) 1.18

Long-term outcomes of the australasian randomized clinical trial comparing laparoscopic and conventional open surgical treatments for colon cancer: the Australasian Laparoscopic Colon Cancer Study trial. Ann Surg (2012) 1.12

Long-term outcome and health-related quality of life after laparoscopic and open colectomy for benign disease. Surg Endosc (2003) 1.07

The impact of practicing in multiple hospitals on physician profiles. Med Care (1996) 1.00

SAGES guideline for clinical application of laparoscopic bariatric surgery. Surg Obes Relat Dis (2009) 0.95

Does the learning curve during laparoscopic colectomy adversely affect costs? Surg Endosc (2010) 0.92

Laparoscopic colectomy: does the learning curve extend beyond colorectal surgery fellowship? JSLS (2011) 0.91

Focus Group on Laparoscopic Colectomy Education as endorsed by the American Society of Colon and Rectal Surgeons (ASCRS) and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES): guidelines for laparoscopic colectomy course. Surg Endosc (2006) 0.91

Accelerated learning curve for colorectal resection, open versus laparoscopic approach, can be attained with expert supervision. Surg Endosc (2010) 0.83

Training, credentialing, and evaluation in laparoscopic surgery. Surg Clin North Am (1992) 0.78

Mentorship for participants in a laparoscopic colectomy course. Surg Endosc (2011) 0.78

Assessing the outcomes of implantable cardioverter defibrillator treatment in a real world setting: results from hospital record data. BMC Health Serv Res (2013) 0.76