At twenty years after Shepard's method of inoculation of M. leprae in the foot pads of mice.
D000818:Animals; D001431:Bacteriological Techniques; D004195:Disease Models, Animal; D005528:Foot; D007918:Leprosy / Q000188:drug therapy; D051379:Mice; D009166:Mycobacterium leprae / Q000254:growth & development*; D013997:Time Factors