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Monitoring a primary health care program with lot quality assurance sampling: Costa Rica, 1987
(1990)
The Lot Quality Assurance Sampling (LOAS) method was developed in industry to determine at reasonable cost whether each lot of a shipment is acceptable, based on samples of a few elements from the lot. Acting as inspectors ...
A case-control study of breast cancer and hormonal contraception in Costa Rica
(1987)
By 1981, 11% of married women in Costa Rica ages
20-49 years had used depot-medroxyprogesterone acetate (DMPA)
and 58% had used oral contraceptives (OCs). Since 1977, the
Costa Rican Ministry of Health has maintained a ...
Descriptive epidemiology of cancer of the breast and uterine cervix in Costa Rica
(1987)
Cancer is currently the second leading cause of death in Costa Rica, with malignant tumors of the stomach, uterus, lung, and breast (in that order) causing the most deaths. In terms of incidence, cancers of the uterine ...