RT Journal Article SR Electronic T1 Breath Test and Serologic Testing for Helicobacter pylori: Reply JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 170 OP 171 DO 10.3122/15572625-11-2-170b VO 11 IS 2 A1 Felz, Michael W. A1 Burke, George J. A1 Schuman, Bernard M. YR 1998 UL http://www.jabfm.org/content/11/2/170.2.abstract AB