the remaining serum was then replaced with 5 micrograms/ml insulin , 10 ng/ml epidermal growth factor ( egf ) , 1 micrograms/ml hydrocortisone , 50 ng/ml ovine prolactin , and 5 micrograms/ml liposome b ( a mixture of soy lecithin , sphingomyelin , cholesterol , vitamin e , and vitamin e acetate in liposome form ) .
C0042874
vitamin e
C0078373
vitamin e acetate