van der Werf, TSvan der Graaf, WTAGroothuis, DGKnell, AJ2025-03-122025-03-121989https://rivm.openrepository.com/handle/10029/631879Mycobacterium ulcerans infection in Ashanti region, Ghana.ArticleTrans R Soc Trop Med Hyg 1989; 83:410-32025-03-12