共 53 条
[1]
[Anonymous], 1988, LANCET, V2, P349
[2]
[Anonymous], 1986, LANCET, V1, P397
[3]
[Anonymous], 1988, BRIT MED J, V296, P320
[4]
[Anonymous], 1988, NEW ENGL J MED, V319, P1681
[7]
BEGG CB, 1988, J R STAT SOC, V151, P420
[9]
BULPITT CJ, 1988, LANCET, V2, P93