MICRODOSE INTRAVAGINAL LEVONORGESTREL- CONTRACEPTION: A MULTICENTRE CLINICAL TRIAL. IV. BLEEDING PATTERNS ArticleWorld H.O., Task F., Reproduction, Koetsawang S., Gao J., Krishna U., Cuadros A., Dhall G.I., Wyss R., La Puenta J.R., Andrade A.T.L., Khan T., Konova E.S., Lawson J.P., Parekh U., Elstein M., Hingorani V., Wang N.N., Yao Z.B., Landgren B.M. ...Contraception. Том 41. 1990. С. 151-167
