REFERENCES
- Dufau M, Dulmanis A, Hudson B, et al: Suppression of oestradiol secretion and luteinising-hormone release during oestrogen-progestagen oral contraceptive therapy. Lancet 1: 271–274, 7 Feb 1970
- Rakoff AE: In Paschkis KE, Rakoff AE, Cantarow A, Rupp JJ (Editors): Clinical Endocrinology. Ed 3. New York, Medical Department, Harper & Row, Publishers, Inc, 1967, chap 4, p 50; chap 25, p 591