RT Journal T1 NOt available JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 1999 FD May 1 VO 153 IS 5 SP 537 OP 540 DO 10.1001/archpedi.153.5.537 UL http://dx.doi.org/10.1001/archpedi.153.5.537 AB Our special appreciation is extended to all persons on this list for their efforts on behalf of our readers, authors, and editorial staff.—ED.