SINHA, S N1952-07-012009-05-271952-07-012009-05-271952-07-01SINHA SN. A method of producing pure and potent vaccine lymph from sheep. Indian Journal of Medical Research. 1952 Jul; 40(3): 327-39http://imsear.searo.who.int/handle/123456789/17395engSheepSmallpox --immunologyA method of producing pure and potent vaccine lymph from sheep.Journal Article