Misra, J SEngineer, A DTandon, PSanwal, K1977-12-012009-05-271977-12-012009-05-271977-12-01Misra JS, Engineer AD, Tandon P, Sanwal K. Cytological evaluation of long term effect of Lippes loop and copper IUDs. Indian Journal of Medical Research. 1977 Dec; 66(6): 942-5http://imsear.searo.who.int/handle/123456789/25143engAdultFemaleHumansIntrauterine Devices --adverse effectsIntrauterine Devices, Copper --adverse effectsTime FactorsUterine Cervical Dysplasia --epidemiologyUterine Cervical Neoplasms --epidemiologyUterine Cervicitis --epidemiologyJournal Article