共 10 条
[1]
BRADFORDHILL A, 1971, PRINCIPLES MEDICAL S, P40
[5]
HOBBS JT, 1974, ARCH SURG-CHICAGO, V109, P793
[6]
Ries E., 1899, JAMA-J AM MED ASSOC, V33, P454, DOI [10.1001/jama.1899.92450600020001g, DOI 10.1001/JAMA.1899.92450600020001G]
[7]
RUCKLEY CV, 1973, LANCET, V2, P1193
[8]
RUSSELL IT, 1977, LANCET, V1, P844
[9]
SIMPSON JEP, 1976, BRIT J HOSP MED, V16, P571
[10]
STEPHENS FO, 1961, LANCET, V1, P1042