Jan Nielsen

Patients with inflammatory bowel disease have increased risk of autoimmune and inflammatory diseases

Morten Lee Halling, Jens Kjeldsen, Torben Knudsen et al. · World Journal of Gastroenterology · 2017 · 228 citations · Full text

Life Sciences, Immunology, Autoimmunity +10

Pain in the lumbar, thoracic or cervical regions: do age and gender matter? A population-based study of 34,902 Danish twins 20–71 years of age

Charlotte Leboeuf‐Yde, Jan Nielsen, Kirsten Ohm Kyvik et al. · BMC Musculoskeletal Disorders · 2009 · 213 citations · Full text

Medicine, Orthopedic Surgery, Pain Management +10

The natural course of sensitization and allergic diseases from childhood to adulthood

Susanne P. Nissen, Henrik F. Kjær, Arne Høst et al. · Pediatric Allergy and Immunology · 2013 · 133 citations

Life Sciences, Dermatology, Pediatrics +13

Heritability of spinal pain and consequences of spinal pain: A comprehensive genetic epidemiologic analysis using a population‐based sample of 15,328 twins ages 20–71 years

Jan Hartvigsen, Jan Nielsen, Kirsten Ohm Kyvik et al. · Arthritis Care & Research · 2009 · 129 citations

Life Sciences, Genetics, Genetic Epidemiology +13

Prevalence of maternal chronic diseases during pregnancy – a nationwide population based study from 1989 to 2013

Line Riis Jølving, Jan Nielsen, Ulrik Schiøler Kesmodel et al. · Acta Obstetricia Et Gynecologica Scandinavica · 2016 · 114 citations · Full text

Medicine, Maternal Health, Obstetrics +17