共 11 条
[1]
ALTER HJ, 1972, LANCET, V1, P1110
[2]
[Anonymous], 1975, NEW ENGL J MED, V293, P1067, DOI 10.1056/NEJM197511202932104
[3]
GRADY G F, 1972, Journal of the American Medical Association, V220, P692, DOI 10.1001/jama.220.5.692
[4]
GRADY GF, IN PRESS
[6]
MANTEL N, 1959, J NATL CANCER I, V22, P719
[9]
REMINGTON RD, 1970, STATISTICS APPLICATI