title: Disease concordance and sex similarity in twins.
mesh_terms: D003327:Coronary Disease / Q000235:genetics; D004200:Diseases in Twins; D004314:Down Syndrome / Q000235:genetics; D004777:Environment; D005260:Female; D030342:Genetic Diseases, Inborn / Q000453:epidemiology; D006801:Humans; D006984:Hypertrophy / Q000235:genetics; D008297:Male; D008957:Models, Genetic; D009436:Neural Tube Defects / Q000235:genetics; D011247:Pregnancy; D011707:Pyloric Stenosis / Q000235:genetics; D011897:Random Allocation; D012559:Schizophrenia / Q000235:genetics; D012723:Sex; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic