Myasthenia gravis: overlap with ‘polyendocrine’ autoimmunity - Scherbaum, WA; Schumm, F; Maisch, B; Muller, C; Fateh-Moghadam, A; Fluchter, SH; Seif, FJ; Bottazzo, GF; Berg, PA (Klin Wochenschr, 1983)