 Kurupu ti diphtheria fa ni o fee je wipe a ko mo nitori imunadoko abere ajesara.Awon itokasiMedical articles translated from English.. 
John Leoba Clarke (oruko àbísọ John Henry Clark, January 1, 1915 – July 16, 1998), je Olukọwe, Olukọwe itan ati ojogbon Pan-Nisi, àti Asiwaju ninu idasilẹ iwadi Eko Áfríkà.Ìtọ́kasí omo Afrika Amémaka Olukọwe itan Afrika.. 