1. Purification of human platelet-derived growth factor;Antoniades;Proc. Natl. Acad. Sci. USA,1979
2. The effect of oxygen tension on the growth and metabolism of WI-38 cells;Balin;J. Cell Physiol.,1976
3. Glucocorticoids and differentiation;Ballard;Glucocorticoid Horm. Action,1979
4. Dexamethasone and cell adhesion;Ballard;Nature,1969