共 49 条
[42]
WARRELL DA, 1990, T R SOC TROP MED S2, V84, P1
[45]
WHITE NJ, 1992, ADV PARASIT, V31, P134
[46]
*WHO, 1997, INT TRAV HLTH VACC R
[47]
*WHO, 1996, WEEKL EP REC, V71