TY - RPRT TI - Using design effects from previous cluster surveys to guide sample size calculation in emergency settings. AU - Reinhard Kaiser AU - Bradley A Woodruff AU - Oleg Bilukha AU - Paul B Spiegel AU - Peter Salama PY - 2006 DO - 10.1111/j.0361-3666.2006.00315.x UR - https://pubmed.ncbi.nlm.nih.gov/16689918/ ID - 16689918 ER -