<qa>  What is the Phase I study evaluating?- This is a Phase I study evaluating 2 groups of patients with KS. Patients will receive pomalidomide once a day, days 1-21 of a 28-day cycle, at the various dose levels combined with liposomal doxorubicin IV day 1 of a 28-day cycle until optimal tumor response, unacceptable toxicity, or patient request to discontinue 