This is the protocol for a review and there is no abstract. The objectives are as follows: To determine the efficacy of ARBs on the survival of patients with heart failure when compared to placebo or ACEIs.To determine the efficacy of ARBs on hospitalization rates in patients with heart failure when compared to placebo or ACEIs.

The total uptake and incorporation into DNA of 3H-thymidine in MCF-7 cells is stimulated by estradiol after an incubation period of 24 h. Prolonged incubations show a decreased rate of both uptake and incorporation of 3H-thymidine, but the labeling index remains elevated up to 48 h. It appears that this is the only exception to the observed good relationship between labeling index and total uptake of 3H-thymidine. This correlation may be of use in comparing autoradiographic and biochemical data on DNA synthesis in the case of culturing both primary mammary tumors and mammary cancer cell lines.