<qa>  What is the contraception method for women of child-bearing potential?- Women of child-bearing potential and men must agree to use adequate contraception hormonal or barrier method of birth control; abstinence prior to study entry, for the duration of study participation, and for 4 weeks after dosing with selumetinib ceases; women of child-bearing potential must have a negative pregnancy test prior to entry; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, the patient should inform her treating physician immediately 