共 5 条
[1]
HERIGSTAD RR, 1973, AM J VET RES, V34, P1227
[3]
UNDERWOOD ERIC J., 1977, TRACE ELEMENTS HUMAN, P302
[4]
WATKINSON JH, 1966, ANAL CHEM, V38, P92
[5]
WILSON TM, 1983, CAN J COMP MED, V47, P412