共 15 条
[1]
BENSON H, 1979, NEW ENGL J MED, V300, P1424
[2]
SPURIOUS EFFECTS FROM AN EXTRANEOUS VARIABLE
[J].
JOURNAL OF CHRONIC DISEASES,
1966, 19 (06)
:637-&
[4]
CORNFIELD J, 1959, J NATL CANCER I, V22, P173
[5]
Cox DR., 1958, PLANNING EXPT
[6]
DAWID AP, 1979, J ROY STAT SOC B MET, V41, P1
[7]
Fisher R.A., 1953, DESIGN EXPT
[9]
Kempthorne O., 1952, DESIGN ANAL EXPT