RT Journal Article SR Electronic T1 Mitral valve prolapse in children and adolescents JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 181 OP 189 VO 49 IS 4 A1 Douglas S. Moodie YR 1982 UL http://www.ccjm.org/content/49/4/181.abstract AB