共 52 条
[32]
SUTHERLAND SK, 1977, MED J AUSTRALIA, V2, P683
[37]
SWAROOP S, 1954, Bull World Health Organ, V10, P35
[38]
THEAKSTON RDG, 1981, J TROP MED HYG, V84, P109
[39]
THEAKSTON RDG, 1981, J TROP MED HYG, V84, P199