CJCP     2002 4 (3):  227-228    ISSN: 1008-8830  CN: 43-1301/R Relationship between Hilicobacter pylori infection (HPI) and chronic gastritis and between HPI and peptic ulcer in children: a study of 56 cases PENG Xin-Ping, ZHANG Jin-Ding, WANG Yue-Ping Received: null  Revised: null  Online: null Supporting info