TY - JOUR DP - http://iris.who.int/ DB - WHO IRIS EP - 260 AU - Henderson, R. H. AU - Sundaresan, T. CY - Geneva PP - Geneva C2 - 6980735 LA - en PB - World Health Organization UR - https://iris.who.int/handle/10665/264739 JF - Bulletin of the World Health Organization DA - 1982 PY - 1982 IS - 2 SP - 253 TI - Cluster sampling to assess immunization coverage: a review of experience with a simplified sampling method. VL - 60 KW - Research Article SN - 0042-9686 ER -