References
- Schindler AE. Möglichkeiten der Diagnostik und Therapie mit Clomifen. Frauenarzt 1990;31:253–70
- Schieve LA, Tatham L, Peterson HB, et al. Spontane-ous abortion among pregnancies conceived using assisted reproductive technology in the United States. Obstet Gynecol 2003;101:959–65
- Jakubowicz DJ, Iuorno MJ, Jakubowicz S, et al. Effects of metformin on early pregnancy loss in the PCOS. J Clin Endocrinol Metab 2002;87:524–9
- ACOG. Practice Bulletin. Management of Recurrent Early Pregnancy Loss. Washington, DC: American College of Obstetricians and Gynecologists, 2001; 24:425–36
- Ssekeres-Bartho J. Immunosuppression by Progesterone in Pregnancy. Boca Raton: CRC Press, 1992
- Stephenson DS. Progesterone and immuno-suppression during pregnancy. Adv Contr Deliv Syst 1990 ;VI: 332–45
- Albrecht ED, Aberdeen GW, Pepe GI. The role of estrogen in the maintenance of primate pregnancy. Am J Obstet Gynecol 2000;182:432–8
- Quenby SM, Farquharson RG. Predicting recurring miscarriage: What is important? Obstet Gynecol 1993; 82:132–8
- Batzer FR, Schlaff S, Gohlfarb AF, et al. Serial 13-subunit human-chorionic-gonadotropin doubling time as prognostic factor of pregnancy outcome in an infertile population. Fertil Steril 1981;35:307–12
- Homan G, Brown S, Moran J, et al. Human chorionic gonadotropin as a predictor of outcome in assisted reproductive technology pregnancies. Fertil Steril 2000;73;270–4
- Mishell DR, Davajan V. Reproductive Endocrinology, Infertility and Contraception. Philadelphia: F.A. Davis 1979:105–20
- Brown JB. Urinary excretion of estrogens during pregnancy, lactation and re-establishment of menstruation. Lancet 1956;1:704–8
- Marthy YS, Aronet GH, Barekh MC. Luteal phase inadequacy: its significance in fertility. Obstet Gynecol 1970;36:758–61
- Formigli L, Roccio C, Belotti G, et al. Oocyte donation by gamete intra-fallopian transfer to amenorrhoeic and cycling patients given replacement steroids. Hum Reprod 1989;4:772–6
- Csapo Al, Pulkinen MO, Ruttner B, et al. The significance of the human corpus luteum in preg-nancy maintenance. Am J Obstet Gynecol 1972;112: 1061–7
- Csapo Al, Pulkikinen MO, Wiest WG. Effects of luteoectomy and progesterone replacement therapy in early pregnant patients. Am J Obstet Gynecol 1973; 115:759–65
- Christensen B, Schindler AE. Lutealdefekt in graviditate als Ursache far habituelle Aborte. Zbl Gynlik 1997;119:462–7
- Yen SSS. Endocrinology ofpregnancy. In Creasy RK, Resnik R, eds. Maternal—Fetal Medicine. Philadelphia: Saunders, 1994:382–412
- Römmler A, Kreutzer E. Luteoplazentarer Shift und Progesterondefizit: Wie kann das Abortsrisiko bei Sterilitätspatientinnen vermindert werden? Gyne 1998;19:169–79
- Daily CA, Laurent SL, Nunley WC. The prognostic value of serum progesterone at quantative HCG in early human pregnancy. Am J Obstet Gynecol 1994; 171:380–4
- Long CA, Lincoln SR, Whitworth NS, et al. Serum progesterone predicts abnormal gestations in clomiphene citrate conception cycles as well as in spontaneous conception cycles. Fertil Steril 1994; 61:838–42
- McCord ML, Arheart KL, Muram D, et al. Single serum progesterone as a screen for ectopic pregnancy: exchanging specificity and sensitivity to obtain optimal test performance. Fertil Steril 1996;66: 513–16
- Johnson MR, Riddle AF, Irvine R, et al. Corpus luteum failure in ectopic pregnancy. Hum Reprod 1993;8:1491–5
- da Fonseca EB, Bittar RE, Carvalho MH, et al. Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: a randomized placebo-controlled double-blind study. Am J Obstet Gynecol 2003;188:419–24
- Pried G, Diedrich K, van der Ven HH, et al. The effect of 17a-hydoxyprogesterone caproate/ estradiol valerate on the development and outcome of early pregnancies following in vitro fertilization and embryo transfer: a prospective and randomized controlled trial. Hum Reprod 1992;7\(Suppl 1): 1–5
- Schindler AE. Behandlung der Risikosch-wangerschaft mit Gravibinon®. Zbl Gyniikol 2001; 123:353–6
- Römmler A, Kreutzer E. Endokrinologische Aspekte des habituellen Abortes. Zbl Gyniikol 2001;123: 344–52
- El-Zibdeh MY. Randomized study comparing the efficacy of reducing spontaneous abortion following treatment with progesterone (dydrogesterone) and human chorionic gonadotropin (hCG). Gynecol Endocrinol 2002;16(Suppl 1):29