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Ugeskrift for Laeger|January 16, 1999
[Determination of menarche and primary amenorrhea]P Helm, K R Münster, L SchmidtUgeskrift for Laeger|November 18, 1996
[Menarche in relation to infertility and adult height and weight]P Helm, K R Münster, L SchmidtUgeskrift for Laeger|March 10, 1997
[Infertility and treatment in a representative population]L Schmidt, K R Münster, P HelmActa Obstetricia Et Gynecologica Scandinavica|October 1, 1995
Recalled menarche in relation to infertility and adult weight and heightP Helm, K Münster, L SchmidtBritish Journal of Obstetrics and Gynaecology|May 1, 1992
Length and variation in the menstrual cycle--a cross-sectional study from a Danish countyK Münster, L Schmidt, P HelmBritish Journal of Obstetrics and Gynaecology|December 1, 1995
Infertility and the seeking of infertility treatment in a representative populationL Schmidt, K Münster, P HelmBritish Journal of Obstetrics and Gynaecology|May 1, 1992
Secondary amenorrhoea: prevalence and medical contact--a cross-sectional study from a Danish countyK Münster, P Helm, L SchmidtJournal of the History of Medicine and Allied Sciences|May 23, 2020
"Physician's prescriptions accurately prepared" - The Mid-Nineteenth-Century Prescription Books of Four Gloucester ChemistsDavid P HelmActa Obstetricia Et Gynecologica Scandinavica|January 1, 1984
Decrease in menarcheal age from 1966 to 1983 in DenmarkP Helm, S HelmContraception|May 1, 1990
Pelvic inflammatory disease: the influence of contraceptive, sexual, and social life eventsO Lidegaard, P HelmPageof 165