“…A partial effect was reported in two studies [61,113]. Fifteen reported no significant differences between medication and placebo [39,63,78,89,101,106,107,111,129,133,139,141,146,149,165]. Four studies were terminated early, two because of a trend towards increased mortality in the treatment arm [112,158], one because of significantly increased survival in the treatment arm [125] and one for reasons not outlined [147].…”