<qa>  What is one of the other methods listed below?Contraception: The effects of CC-11050 on the developing human fetus are unknown. For this reason, subjects must agree to not become pregnant. Females of childbearing potential must have a pregnancy test before initiating the study agent and at each study visit. Because of the risk involved, male and female study participants who engage in sexual activities that can result in pregnancy must agree to use of a male or female condom at every potentially reproductive sexual encounter, AS WELL AS one of the other methods listed below, beginning at the baseline visit and continuing until 3 months after discontinuation of the study agent. Acceptable methods are as follows: 