References
- Nachtigall LE, Nachtigall RH, Nachtigall RO, et al. Estrogen replacement therapy. II. A prospective study in the relationship to carcinoma and cardiovascular and metabolic problems. Obstet Gynecol 1979: 54(1): 74–9
- Gambrell RD Jr. Maier RC, Sanders Bl. Decreased incidence of breast cancer in postmenopausal estrogenprogestogen users. Obstet Gynecol 1983: 62(4): 435–43
- Nachtigall LE. Nachtigall RH, Nachtigal RO, et al. Estrogen replacement therapy. 1. A ten-year prospective study in the relationship to osteoporosis. Otetet Gynecol 1979: 53(3): 277–81
- Christiansen C, Christensen MS, Tranabφl I. Bone mass in postmenopausal women after withdrawal of oestrogen/progestogen replacement therapy. Lancet 1981: 1(8218): 459–61
- Crilly RG, Marshall DH, Nordin BE. The effect of oestradiol valerate and cyclic oestradiol valerate/dl-Noigestrelon calcium metabolism. Postgrad Med J 1981: 54: 47