共 9 条
[1]
CLARK R, 1973, LANCET, V1, P66
[3]
FREER DE, 1977, CLIN CHEM, V23, P1099
[4]
GOLDFINGER R, 1978, AM J GASTROENTEROL, V70, P385
[5]
GRAY TA, 1987, Q J MED, V65, P811