1. Ultrastructural aspects of in vitro haemopoiesis;Allen,1978
2. Haemopoietic microenvironments in vitro: Ultrastructural aspects;Allen,1981
3. Surface morphology and ultrastructure of murine granulocytes and monocytes in long-term liquid culture;Allen;Blood Cells,1976
4. Cellular interrelationships during in vitro granulopoiesis;Allen;Differentiation,1976
5. Properties of cells that produce erythrocytic colonies in vitro;Axelrad,1974