Combining steroids with PIS.
D001862:Bone Resorption / Q000139:chemically induced; D003480:Cushing Syndrome / Q000139:chemically induced; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D017320:HIV Protease Inhibitors / Q000008:administration & dosage / Q000009:adverse effects*; D006801:Humans; D011241:Prednisone / Q000008:administration & dosage / Q000009:adverse effects*; D019438:Ritonavir / Q000008:administration & dosage / Q000009:adverse effects*; D013256:Steroids / Q000097:blood
D017320:HIV Protease Inhibitors; D013256:Steroids; D019438:Ritonavir; D011241:Prednisone