TIMONEN HENRI 555,236 Intrauterine contraception with Copper-T : academic dissertation / by Henri Timonen ; Steroid Research Laboratory. Department of Medical Chemistry. University of Helsinki, and the Midwives Institute, Helsinki, Finland. - Helsinki : University of Helsinki, 1976. - 90 s. : wykr. ; 25 cm Bibliogr. s. 82-90. - Summ ISBN 951-99090-5-2