<qa>  What are women who are pregnant or breast-feeding?- WOCBP who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period and for up to four weeks after completion of the study. Acceptable methods include oral, injectable or implanted contraceptives, intrauterine devices or barrier methods such as condoms, diaphragm, and spermicides. Women who are pregnant or breast-feeding, or who plan to become pregnant during the study. 