Trends in Oral Contraception Gisela A working hypothesis on the

A working hypothesis on the mechanism responsible for water plant decline during eutrophication was adopted and tested in a combination of field and laboratory work

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Trends in Oral Contraception Gisela A working hypothesis on theAfter 20 years of oral contraceptive (OC) use, epidemiological data and scientific research have led to the now accepted evidence that the most important effect produced by these drugs on humans, other than the prevention of unwanted pregnancy, is an increase in the risk of cardiovascular disease. Because the incidence of cardiovascular disease is also related to disturbances of the lipoprotein metabolism, it appears to be opportune to analyse the