Users' perspectives on medical abortion in FinlandHONKANEN, Helena; VON HERTZEN, Helena.Contraception (Stoneham). 2002, Vol 65, Num 6, pp 419-423, issn 0010-7824Article

Frequently asked questions about medical abortionVON HERTZEN, Helena; BAIRD, David.Contraception (Stoneham). 2006, Vol 74, Num 1, pp 3-10, issn 0010-7824, 8 p.Article

Effect on pregnancy rates of the delay in the administration of levonorgestrel for emergency contraception: a combined analysis of four WHO trialsPIAGGLO, Gilda; KAPP, Nathalie; VON HERTZEN, Helena et al.Contraception (Stoneham). 2011, Vol 84, Num 1, pp 35-39, issn 0010-7824, 5 p.Article

Complications of first-trimester abortion by vacuum aspiration after cervical preparation with and without misoprostol: a multicentre randomised trialMEIRIK, Olav; THI MY HUONG, Nguyen; PIAGGIO, Gilda et al.Lancet (British edition). 2012, Vol 379, Num 9828, pp 1817-1824, issn 0140-6736, 8 p.Article

A randomized, double-blind, noninferiority study to compare two regimens of levonorgestrel for emergency contraception in NigeriaDADA, Olukayode A; GODFREY, Emily M; PIAGGIO, Gilda et al.Contraception (Stoneham). 2010, Vol 82, Num 4, pp 373-378, issn 0010-7824, 6 p.Article

Pharmacokinetics of a single oral dose of 1.5-mg levonorgestrel when administered as 750-μg tablets or as 30-μg minipillsDEVOTO, Luigi; ESPINOZA, Alejandra; MUNOZ, Alex et al.Fertility and sterility. 2007, Vol 88, Num 4, pp 976-977, issn 0015-0282, 2 p.Article

Estimating the effectiveness of emergency contraceptive pillsTRUSSEL, James; ELLERTSON, Charlotte; VON HERTZEN, Helena et al.Contraception (Stoneham). 2003, Vol 67, Num 4, pp 259-265, issn 0010-7824, 7 p.Article

Menstrual induction with mifepristone and misoprostolBILIAN XIAO; VON HERTZEN, Helena; HENG ZHAO et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 489-494, issn 0010-7824, 6 p.Conference Paper

Late follicular phase administration of mifepristone suppresses circulating leptin and FSH - mechanism(s) of action in emergency contraception?LEMINEN, Riikka; RAIVIO, Taneli; RANTA, Sirpa et al.European journal of endocrinology. 2005, Vol 152, Num 3, pp 411-418, issn 0804-4643, 8 p.Article

Luteal phase treatment with mifepristone and misoprostol for fertility regulationBILIAN XIAO; VON HERTZEN, Helena; HENG ZHAO et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 477-482, issn 0010-7824, 6 p.Conference Paper

Pharmacokinetics and endometrial tissue levels of levonorgestrel after administration of a single 1.5-mg dose by the oral and vaginal routeDEVOTO, Luigi; FUENTES, Ariel; PALOMINO, Alberto et al.Fertility and sterility. 2005, Vol 84, Num 1, pp 46-51, issn 0015-0282, 6 p.Article

Combined estimates of effectiveness of mifepristone 10 mg in emergency contraceptionPIAGGIO, Gilda; ZHAO HENG; VON HERTZEN, Helena et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 439-446, issn 0010-7824, 8 p.Conference Paper

Meta-analyses of randomized trials comparing different doses of mifepristone in emergency contraceptionPIAGGIO, Gilda; VON HERTZEN, Helena; ZHAO HENG et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 447-452, issn 0010-7824, 6 p.Conference Paper

Levonorgestrel and mifepristone in emergency contraceptionVON HERTZEN, Helena; PIAGGIO, Gilda.Steroids. 2003, Vol 68, Num 10-13, pp 1107-1113, issn 0039-128X, 7 p.Conference Paper

Pharmacokinetics of 10 mg of mifepristoneLEMINEN, Riikka; RANTA, Sirpa; VON HERTZEN, Helena et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 427-429, issn 0010-7824, 3 p.Conference Paper

Expanded clinical trial of emergency contraception with 10 mg mifepristoneBILIAN XIAO; HENG ZHAO; PIAGGIO, Gilda et al.Contraception (Stoneham). 2003, Vol 68, Num 6, pp 431-437, issn 0010-7824, 7 p.Conference Paper

Tolerability of levonorgestrel emergency contraception in adolescentsHARPER, Cynthia C; ROCCA, Corinne H; DARNEY, Philip D et al.American journal of obstetrics and gynecology. 2004, Vol 191, Num 4, pp 1158-1163, issn 0002-9378, 6 p.Article

Efficacy of two intervals and two routes of administration of misoprostol for termination of early pregnancy: a randomised controlled equivalence trial. Editorial CommentWINIKOFF, Beverly; DAVIS, Anne Rachel; MITTAL, Suneeta et al.Lancet (British edition). 2007, Vol 369, Num 9577, issn 0140-6736, 1904-1906, 1938-1946 [12 p.]Article

Synergistic effects of antiprogestins and iNOS or aromatase inhibitors on establishment and maintenance of pregnancyLEILI SHI; SHI, Shao-Qing; GIVEN, Randall L et al.Steroids. 2003, Vol 68, Num 10-13, pp 1077-1084, issn 0039-128X, 8 p.Conference Paper

Comparison of vaginal and sublingual misoprostol for second trimester abortion: randomized controlled equivalence trialVON HERTZEN, Helena; PIAGGIO, Gilda; DAVER, Rekha et al.Human reproduction (Oxford. Print). 2009, Vol 24, Num 1, pp 106-112, issn 0268-1161, 7 p.Article

WHO multinational study of three misoprostol regimens after mifepristone for early medical abortion. I: EfficacyVON HERTZEN, Helena; HONKANEN, Helena; NGUYEN THI NHU NGOC et al.BJOG (Oxford. Print). 2003, Vol 110, Num 9, pp 808-818, issn 1470-0328, 11 p.Article

Mechanism of action of hormonal preparations used for emergency contraception : a review of the literatureCROXATTO, Horacio B; DEVOTO, Luigi; DURAND, Marta et al.Contraception (Stoneham). 2001, Vol 63, Num 3, pp 111-121, issn 0010-7824Article

WHO multinational study of three misoprostol regimens after mifepristone for early medical abortion. II: Side effects and women's perceptionsHONKANEN, Helena; PIAGGIO, Gilda; NGUYEN THI NHU NGOC et al.BJOG (Oxford. Print). 2004, Vol 111, Num 7, pp 715-725, issn 1470-0328, 11 p.Article

Low dose mifepristone and two regimens of levonorgestrel for emergency contraception: a WHO multicentre randomised trialVON HERTZEN, Helena; PIAGGIO, Gilda; WEIYU CHENG et al.Lancet (British edition). 2002, Vol 360, Num 9348, pp 1803-1810, issn 0140-6736, 8 p.Article