1. Andersen, S. B., and J. Ladefoged: Pure red cell anemia and thymoma. Acta haemat. (Basel) 30, 319 (1963).
2. Bakker, P. M.: Enkele opmerkingen bij twee gezwellen van de thymus. Ned. T. Geneesk. 98, 386 (1954).
3. Barnes, R. D.: Thymicneoplasms associated with refractory anemia. Guy’s Hosp. Rep. 114, 73 (1965).
4. Barnes, R. D.: Refractory anaemia with thymoma. Lancet 1966 11, l464.
5. Barnes, R. D., and P. O’Gorman: Two cases of aplastic anemia associated with tumours of the thymus. J. clin. Path. 15, 264 (1962).