3MONTEIRO L,M ASCAREL A,SARRAQUETA A M,et al. Diagnosis of Helicobacter pylor infection : noninvasive methods compared to invasive methods and evaluation of two new tests [J]. Am J Gastroenterol,2001,96:353 - 358.
4VAN DOORN O J,BOSMAN D K, VANT HOFF B W,et al. Helicobac- ter pylori stool antigen test: a re liable non-invasive test for the diagnosis of Helicobacter pylori infection in children [J]. Eur J Gastroenterol Hepatol, 2001,13:1061 - 1065.
5KONSTANTOPOULOS N,RUSSMANN H,TASCH C,et al. Evaluation of the Helicobacter pylori stool antigen test (HpSA) for detection of Helicobacter pylori infection in children[J]. Am J Gastroenterol,2001,96:677 - 683.