298,647 AMERICAN The American Pediatric Society and the Society for Pediatric Research : abstracts and program outline, Sheraton Washington Hotel Washington, D.C. May 1-4, 1989 Monday-Thursday : session listings and contents appear in the APS/SPR pocket program. - Baltimore : APS ; SPR, 1989. - XVI, 419, [4] s. : wykr. ; 28 cm (Pediatric Research ISSN 0031-3998 ; vol. 25 ; nr 4/P.2 ; program issue)