title: Three cases in two families of multiple endocrine neoplasia (MEN) type IIa.
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000235:genetics*; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009377:Multiple Endocrine Neoplasia / Q000235:genetics*; D013964:Thyroid Neoplasms / Q000235:genetics*