[1] The Danish Twin Registry,Department of Public Health
[2] Epidemiology,Department of Endocrinology
[3] Institute of Public Health,undefined
[4] University of Southern Denmark,undefined
[5] Centre for Genetic Epidemiology,undefined
[6] University of Melbourne,undefined
[7] Institute of Cell,undefined
[8] Animal and Population Biology,undefined
[9] University of Edinburgh,undefined
[10] Odense University Hospital,undefined
[11] Danish Epidemiology Science Centre,undefined
[12] Institute of Preventive Medicine,undefined
[13] Copenhagen University Hospital,undefined