TY - RPRT TI - Disease outbreak investigation. Three case studies. AU - I R Dohoo AU - W B Ley AU - R Ruppanner PY - 1988 DO - 10.1016/s0749-0720(15)31108-7 UR - https://pubmed.ncbi.nlm.nih.gov/3259458/ ID - 3259458 ER -