Leandro Orozco Nodarse

Serum lipids in postmenopausal or perimenopausal women using estrogen alone, estrogen with levonorgestrel, or estrogen with norethisterone, compared with nonusers: results from a cross-sectional study in two Norwegian counties 1985-1988.

P. Urdal, S. Graff-Iversen, A. Tverdal, 1998, Journal of clinical epidemiology.