共 9 条
[2]
GREENE JC, 1965, CLEFT PALATE J, V2, P141
[3]
LILIENFELD AM, 1968, EPIDEMIOLOGY MONGOLI
[5]
MANTEL N, 1959, J NATL CANCER I, V22, P719
[6]
MANTEL N, 1963, J AM STAT ASSOC, V58, P690