TY - JOUR KW - Animals KW - BCG Vaccine KW - Emigration and Immigration KW - Environment KW - History, 19th Century KW - History, 20th Century KW - Humans KW - Illinois KW - Immunity, Cellular KW - Iowa KW - leprosy KW - Minnesota KW - Mycobacterium leprae KW - North Dakota KW - Norway KW - Population Surveillance KW - South Dakota KW - Wisconsin AU - Lechat M F BT - International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association C1 - http://www.ncbi.nlm.nih.gov/pubmed/4591733?dopt=Abstract DA - 1973 Jul-Sep IS - 3 J2 - Int. J. Lepr. Other Mycobact. Dis. LA - fre PY - 1973 SP - 298 EP - 306 T2 - International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association TI - [Epidemiology of leprosy in the last 100 years]. VL - 41 SN - 0148-916X ER -