[On the problems of variolation in Slovakia and in Europe].
D003604:Czechoslovakia; D005060:Europe; D049670:History, 17th Century; D049671:History, 18th Century; D012899:Smallpox / Q000517:prevention & control; D014611:Vaccination / Q000266:history*
K problematike variolizácie na Slovensku a v Európe.