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    • Molina, Ramiro; Martinez, Luis; Salas, Oriana; Dabancens, Aifredo; Yun, Tao; Zhi‐Heng, Chen; Yong‐Wei, Hu; Cuadros, Alvaro; Aristizabal, Nubia; Modan, Baruch; Ron, Elaine; Alfandary, Esther; Mati, J. G.; Kenya, Patrick; Kungu, Alfred; Gatei, D.; Ibeziako, Patrick A.; Abio (1989)
      A multi‐national, hospital‐based, case‐control study was conducted to evaluate the possible relationships of steroid contraceptives to 6 neoplasms. Based on data from 122 newly diagnosed cases of primary liver cancer and ...