Effectiveness of reactive oral cholera vaccination in rural Haiti: a case-control study and bias-indicator analysis oleh Dr. Louise C Ivers, MBBCh, Isabelle J Hilaire, MD, Jessica E Teng, MPH, Charles P Almazor, MD, J Gregory Jerome, MD, Ralph Ternier, MD, Jacques Boncy, MD, Josiane Buteau, MD, Prof. Megan B Murray, MD, Jason B Harris, MD, Molly F Franke, ScD