RT Journal Article SR Electronic T1 Atraumatic Pneumopericardium in a Full-Term Newborn with Fetal Tachycardia JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 55 OP 58 DO 10.3122/jabfm.10.1.55 VO 10 IS 1 A1 Johnson, Niel A. A1 Gore, Johnathan R. YR 1997 UL http://www.jabfm.org/content/10/1/55.abstract AB