TY - JOUR DP - http://iris.who.int/ DB - WHO IRIS EP - 23 AU - Kew, Olen M. AU - Wright, Peter F. AU - Agol, Vadim I. AU - Delpeyroux, Francis AU - Shimizu, Hiroyuki AU - Nathanson, Neal AU - Pallansch, Mark A. CY - Geneva PP - Geneva C2 - 15106296 LA - en PB - World Health Organization UR - https://iris.who.int/handle/10665/269048 JF - Bulletin of the World Health Organization DA - 2004-1 PY - 2004-1 IS - 1 SP - 16 TI - Circulating vaccine-derived polioviruses: current state of knowledge. VL - 82 KW - Research Article SN - 0042-9686 ER -