Engineer, A DMisra, J STandon, P1981-07-012009-05-271981-07-012009-05-271981-07-01Engineer AD, Misra JS, Tandon P. Comparative cervical cytology in women using different types of copper IUDs. Indian Journal of Medical Research. 1981 Jul; 74(): 23-30http://imsear.searo.who.int/handle/123456789/16921engAdolescentAdultFemaleFollow-Up StudiesHumansIntrauterine Devices, Copper --adverse effectsMiddle AgedTime FactorsUterine Cervical Dysplasia --etiologyVaginal SmearsComparative cervical cytology in women using different types of copper IUDs.Case Reports