共 9 条
[1]
ARMITAGE P, 1971, STATISTICAL METHODS
[4]
FISHER RA, 1946, STATISTICAL METHODS
[5]
FISHER RA, 1963, STATISTICAL TABLES B
[7]
MAINLAND D, 1963, ELEMENTARY MEDICAL S
[9]
Zaman V, 1974, Singapore Med J, V15, P147