Pinto, Maximina Rodrigues2018-05-182018-05-181983-03https://hdl.handle.net/10539/24489A Thesis submitted to the Faculty of Medicine University of the Witwatersrand,, Johannesburg, for a Degree of Doctor of PhilosophyHormonal - contraceptives - ' the pill ' as it is known to the general public - are among the most universally used drugs in our contemporary world. Daily millions of health young women are taking the ' pill ' for a purpose other than the control of diseaseenContraceptives, Oral, HormonalChromosomesLymphocytesThesis