%0 %A Svarval A., %T Comparison of prevalence H. pylori infection among children of St.-Petersburg, Russia at present %D 2019-09-05 %R https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=ISI:000486077700201 %J Helicobacter %X %U https://pasteur.elpub.ru/publication/1678