RT Journal Article SR Electronic T1 Breath Test and Serologic Testing for Helicobacter pylori 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 170 DO 10.3122/15572625-11-2-170a VO 11 IS 2 A1 Mark H. Ebell YR 1998 UL http://www.jabfm.org/content/11/2/170.1.abstract AB