The nature of behavioural correlates of healthy ageing: a twin study of lifestyle in mid to late lifeMCGUE, Matt; SKYTTHE, Axel; CHRISTENSEN, Kaare et al.International journal of epidemiology. 2014, Vol 43, Num 3, pp 775-782, issn 0300-5771, 8 p.Article

Les centenaires au Danemark hier et aujourd'hui = The hundred in Denmark yesteday and todayJEUNE, Bernard; SKYTTHE, Axel; SCHELLINGS, Charles et al.Population. 2001, Vol 56, Num 1-2, pp 87-108, issn 0032-4663Article

Genetic and environmental factors in alexithymia : A population-based study of 8,785 Danish twin pairsJØRGENSEN, Michael Martini; ZACHARIAE, Robert; SKYTTHE, Axel et al.Psychotherapy and psychosomatics. 2007, Vol 76, Num 6, pp 369-375, issn 0033-3190, 7 p.Article

Traits of ADHD and autism in girls with a twin brother: a Mendelian randomization studyATTERMANN, Jørn; OBEL, Carsten; BILENBERG, Niels et al.European child & adolescent psychiatry. 2012, Vol 21, Num 9, pp 503-509, issn 1018-8827, 7 p.Article

Risk of suicide in twins 51 year follow up studyTOMASSINI, Cecilia; JUEL, Knud; HOLM, Niels V et al.BMJ. British medical journal (International ed.). 2003, Vol 327, Num 7411, pp 373-374, issn 0959-8146, 2 p.Article

Comparison of academic performance of twins and singletons in adolescence : follow-up studyCHRISTENSEN, Kaare; PETERSEN, Inge; SKYTTHE, Axel et al.BMJ. British medical journal (International ed.). 2006, Vol 333, Num 7578, pp 1095-1097, issn 0959-8146, 3 p.Article

Genetic influence on prolonged gestation: A population-based Danish twin studyLAURSEN, Maja; BILLE, Camilla; OLESEN, Annette W et al.American journal of obstetrics and gynecology. 2004, Vol 190, Num 2, pp 489-494, issn 0002-9378, 6 p.Article

A possible association between the genetic predisposition for dizygotic twinning and schizophreniaKLÄNING, Ulla; PEDERSEN, Carsten Bøcker; MORTENSEN, Preben Bo et al.Schizophrenia research. 2002, Vol 58, Num 1, pp 31-35, issn 0920-9964Article

Genetic and Environmental Influences on Risk of Death due to Infections Assessed in Danish Twins, 1943-2001OBEL, Niels; CHRISTENSEN, Kaare; PETERSEN, Inge et al.American journal of epidemiology. 2010, Vol 171, Num 9, pp 1007-1013, issn 0002-9262, 7 p.Article

Time trends in waiting time to pregnancy among Danish twinsJENSEN, Tina Kold; JOFFE, Mike; SCHEIKE, Thomas et al.Human reproduction (Oxford. Print). 2005, Vol 20, Num 4, pp 955-964, issn 0268-1161, 10 p.Article

Genetic liability in stroke: A long-term follow-up study of Danish twinsBAK, Siren; GAIST, David; SINDRUP, Søren Hein et al.Stroke (1970). 2002, Vol 33, Num 3, pp 769-774, issn 0039-2499Article

Recurrence Risk for Offspring of Twins Discordant for Oral Cleft: A Population-Based Cohort Study of the Danish 1936―2004 Cleft Twin CohortGROSEN, Dorthe; BILLE, Camilla; KRABBE PEDERSEN, Jacob et al.American journal of medical genetics. Part A. 2010, Vol 152, Num 10, pp 2468-2474, issn 1552-4825, 7 p.Article

Handedness and mortality : A follow-up study of danish twins born between 1900 and 1910BASSO, Olga; OLSEN, Jørn; HOLM, Niels V et al.Epidemiology (Cambridge, Mass.). 2000, Vol 11, Num 5, pp 576-580, issn 1044-3983Article

Evidence for an association of methylene tetrahydrofolate reductase polymorphism C677T and an increased risk of fractures: results from a population-based Danish twin studyBATHUM, Lise; VON BORNEMANN HJELMBORG, Jacob; CHRISTIANSEN, Lene et al.Osteoporosis international. 2004, Vol 15, Num 8, pp 659-664, issn 0937-941X, 6 p.Article

A novel sampling design to explore gene-longevity associations : the ECHA studyDE RANGO, Francesco; DATO, Serena; ROBINE, Jean Marie et al.European journal of human genetics. 2008, Vol 16, Num 2, pp 236-242, issn 1018-4813, 7 p.Article

Risk for multiple sclerosis in dizygotic and monozygotic twinsHANSEN, Thomas; SKYTTHE, Axel; STENAGER, Egon et al.Multiple sclerosis. 2005, Vol 11, Num 5, pp 500-503, issn 1352-4585, 4 p.Article

Register-based research on twinsCHRISTENSEN, Kaare; KYVIK, Kirsten Ohm; HOLM, Niels V et al.Scandinavian journal of public health. 2011, Vol 39, pp 185-190, issn 1403-4948, 6 p., SUP7Article

The causal direction in the association between respiratory syncytial virus hospitalization and asthmaSTENSBALLE, Lone Graff; SIMONSEN, Jacob Brunbjerg; THOMSEN, Simon Francis et al.Journal of allergy and clinical immunology. 2009, Vol 123, Num 1, pp 131-137, issn 0091-6749, 7 p.Article

Increased Concordance of Severe Respiratory Syncytial Virus Infection in Identical TwinsTHOMSEN, Simon Francis; STENSBALLE, Lone Graff; SKYTTHE, Axel et al.Pediatrics (Evanston). 2008, Vol 121, Num 3, pp 493-496, issn 0031-4005, 4 p.Article

Genetic influence on human lifespan and longevityHJELMBORG, Jacob Vb; IACHINE, Ivan; SKYTTHE, Axel et al.Human genetics. 2006, Vol 119, Num 3, pp 312-321, issn 0340-6717, 10 p.Article

Does Education Confer a Culture of Healthy Behavior? Smoking and Drinking Patterns in Danish TwinsJOHNSON, Wendy; KYVIK, Kirsten Ohm; MORTENSEN, Erik L et al.American journal of epidemiology. 2011, Vol 173, Num 1, pp 55-63, issn 0002-9262, 9 p.Article

Education reduces the effects of genetic susceptibilities to poor physical healthJOHNSON, Wendy; OHM KYVIK, Kirsten; MORTENSEN, Erik L et al.International journal of epidemiology. 2010, Vol 39, Num 2, pp 406-414, issn 0300-5771, 9 p.Article

A cohort study of Parkinson's disease and other neurodegenerative disorders in Danish weldersFRYZEK, Jon P; HANSEN, Johnni; COHEN, Sarah et al.Journal of occupational and environmental medicine. 2005, Vol 47, Num 5, pp 466-472, issn 1076-2752, 7 p.Article

Parent's age and the risk of oral cleftsBILLE, Camilla; SKYTTHE, Axel; VACH, Werner et al.Epidemiology (Cambridge, Mass.). 2005, Vol 16, Num 3, pp 311-316, issn 1044-3983, 6 p.Article

The impact of genes on the occurrence of autoantibodies in rheumatoid arthritis. A study on disease discordant twin pairsSVENDSEN, Anders J; HJELMBORG, Jacob V; KYVIK, Kirsten O et al.Journal of autoimmunity (Print). 2013, Vol 41, pp 120-125, issn 0896-8411, 6 p.Article