共 14 条
[11]
HAOT J, 1990, HELICOBACTER PYLORI, P237
[12]
NEGRINI R, 1992, SCAND J GASTROENTERO, V27, P559
[13]
WALKERSMITH JA, 1990, ARCH DIS CHILD, V65, P909, DOI 10.1136/adc.65.8.909