16. Women with an intact uterus (unless amenorrhoeic for the last 24 months) not using effective, means of contraception during the study and for a period of 6 months following the last administration of bevacizumab. Men who do not agree to use effective contraception during the study and for a period of 90 days following the last administration of bevacizumab. Men who do not agree to use effective contraception during the study and for a period of 90 days following the last administration of bevacizumab