共 22 条
[2]
ORIGIN OF O SEROTYPES OF ESCHERICHIA-COLI IN BABIES AFTER NORMAL DELIVERY
[J].
JOURNAL OF HYGIENE,
1974, 72 (01)
:67-70
[3]
BETTELHEIM KA, 1969, THESIS U LONDON
[4]
BETTELHEIM KA, IN PRESS
[5]
CHANDLER M, IN PRESS
[6]
COOKE EM, 1970, LANCET, V1, P436
[8]
Edwards PR., 1972, IDENTIFICATION ENTER