共 26 条
[3]
Impact of hospital volume on operative mortality for major cancer surgery
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1998, 280 (20)
:1747-1751
[4]
Cameron AJ, 1997, AM J GASTROENTEROL, V92, P586
[7]
DUHAYLONGSOD FG, 1991, J THORAC CARDIOV SUR, V102, P36
[9]
Comparison of evidence of treatment effects in randomized and nonrandomized studies
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
2001, 286 (07)
:821-830
[10]
Final results from 10 year cohort of patients undergoing surveillance for Barrett's oesophagus: observational study
[J].
BMJ-BRITISH MEDICAL JOURNAL,
2000, 321 (7271)
:1252-1255