Megalothymus in twins. A genealogical study of 7 pairs.
D004200:Diseases in Twins; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000235:genetics*; D007223:Infant; D008297:Male; D010375:Pedigree; D013952:Thymus Hyperplasia / Q000235:genetics*