@article{14978,
  keywords = {Antigens, Humans, Lepromin, leprosy, Skin Tests},
  author = {Ridley D S and Jopling W H},
  title = {Classification of leprosy according to immunity. A five-group system.},
  year = {1966},
  journal = {International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association},
  volume = {34},
  pages = {255-73},
  month = {1966 Jul-Sep},
  issn = {0148-916X},
  url = {http://ila.ilsl.br/pdfs/v34n3a03.pdf},
  language = {eng},
}