1. Lack of direct effect of erythropoietin on human erythroid cells in vitro;Alpen;Nature (Lond.),1959
2. Mécanisme d'action de l'érythropoiétine (recherches in vitro);Bernardelli;Schweiz. med. Wschr.,1962
3. Mitotic and functional homeostasis. A speculative review;Bullough;Cancer Res.,1965
4. Mitotic homeostasis;Bullough;Nature (Lond.),1965