Engineer, A DMisra, J STandon, P1980-03-012009-05-311980-03-012009-05-311980-03-01Engineer AD, Misra JS, Tandon P. Cytological studies in women using different types of hormonal contraceptives. Journal of the Indian Medical Association. 1980 Mar; 74(5): 88-91http://imsear.searo.who.int/handle/123456789/99797engAdultContraceptive Agents, Female --administration & dosageContraceptives, Oral --adverse effectsDelayed-Action PreparationsEstradiol Congeners --administration & dosageFemaleHumansProgesterone Congeners --administration & dosageUterine Cervical Neoplasms --chemically inducedVaginal SmearsJournal Article