title: Letter: HL-A antigens in myasthenia gravis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D007223:Infant; D008297:Male; D009157:Myasthenia Gravis / Q000150:complications / Q000276:immunology* / Q000601:surgery / Q000628:therapy; D012737:Sex Factors; D013934:Thymectomy; D013945:Thymoma / Q000150:complications / Q000601:surgery; D013953:Thymus Neoplasms / Q000150:complications / Q000601:surgery
chemical_list: D006649:Histocompatibility Antigens