共 5 条
[1]
GRAY D F, 1959, J Hyg (Lond), V57, P473
[2]
GRAY DAVID F., 1960, JOUR HYG, V58, P215
[4]
GRAY DF, 1952, AMER REV TUBERC, V69, P92
[5]
RATCLIFFE HL, 1953, J EXP MED, V97, P61, DOI 10.1084/jem.97.1.61