AU - Ipp M, Sam J, Parkin PC TI - NEedle aspiration and intramuscular vaccination PT - JOUR DP - 2006 TA - Archives of Pediatrics & Adolescent Medicine pages = {451}, VI - 160 IP - 4 AID - 10.1001/archpedi.160.4.451-a [doi] 4100 - http://dx.doi.org/10.1001/archpedi.160.4.451-a SO - Archives of Pediatrics & Adolescent Medicine April 1, 2006 160(4):451