| Hereditary haemorrhagic telangiectasia: a population-based study of prevalence and mortality in Danish patients | Journal of Internal Medicine | 1999 | 303 |
| Wine intake and diet in a random sample of 48763 Danish men and women | American Journal of Clinical Nutrition | 1999 | 231 |
| The validity of ultrasonographic scanning as screening method for abdominal aortic aneurysm | European Journal of Vascular and Endovascular Surgery | 1999 | 171 |
| Birth weight and length as predictors for adult height | American Journal of Epidemiology | 1999 | 133 |
| Drug use in first pregnancy and lactation: a population-based survey among Danish women. The EUROMAP group | European Journal of Clinical Pharmacology | 1999 | 126 |
| Prevalent urinary incontinence as a correlate of pregnancy, vaginal childbirth, and obstetric techniques | American Journal of Public Health | 1999 | 96 |
| Birth outcomes of women with celiac disease: a nationwide historical cohort study | American Journal of Gastroenterology | 1999 | 88 |
| Risk of primary biliary liver cirrhosis in patients with coeliac disease: Danish and Swedish cohort data | Gut | 1999 | 87 |
| Oral clefts, transforming growth factor alpha gene variants, and maternal smoking: a population-based case-control study in Denmark, 1991-1994 | American Journal of Epidemiology | 1999 | 85 |
| Distress and reduced fertility: a follow-up study of first-pregnancy planners | Fertility and Sterility | 1999 | 79 |
| Menstrual cycle pattern and fertility: a prospective follow-up study of pregnancy and early embryonal loss in 295 couples who were planning their first pregnancy | Fertility and Sterility | 1999 | 59 |
| Secular trends in incidence and mortality of bacteraemia in a Danish county 1981-1994 | Apmis | 1999 | 55 |
| Risk of malformations and other outcomes in children exposed to fluconazole in utero | British Journal of Clinical Pharmacology | 1999 | 52 |
| A population-based case-control teratologic study of oral erythromycin treatment during pregnancy | Reproductive Toxicology | 1999 | 44 |
| Immunoglobulin A antibodies against Chlamydia pneumoniae are associated with expansion of abdominal aortic aneurysm | British Journal of Surgery | 1999 | 42 |
| Low birthweight and prematurity in relation to paternal factors: a study of recurrence | International Journal of Epidemiology | 1999 | 39 |
| Prescribing during pregnancy and lactation with reference to the Swedish classification system, A population-based study among Danish women | Acta Obstetricia Et Gynecologica Scandinavica | 1999 | 39 |
| Diffusion of new drugs in Danish general practice | Family Practice | 1999 | 36 |
| The safety of proton pump inhibitors in pregnancy | Alimentary Pharmacology and Therapeutics | 1999 | 36 |
| A population-based study of antibiotic prescriptions for Danish children | Pediatric Infectious Disease Journal | 1999 | 34 |
| One-leg standing balance and sports activity | Scandinavian Journal of Medicine and Science in Sports | 1999 | 33 |
| Study of environmental, social, and paternal factors in preterm delivery using sibs and half sibs. A population-based study in Denmark | Journal of Epidemiology and Community Health | 1999 | 31 |
| Safety of metronidazole during pregnancy: a cohort study of risk of congenital abnormalities, preterm delivery and low birth weight in 124 women | Journal of Antimicrobial Chemotherapy | 1999 | 31 |
| Risk of resistance related to antibiotic use before admission in patients with community-acquired bacteraemia | Journal of Antimicrobial Chemotherapy | 1999 | 30 |
| Lipid-lowering medication and risk of cancer | Journal of Clinical Epidemiology | 1999 | 29 |
