"Cyclophosphamide"[Mesh] OR cyclophosphamid*[tiab] OR cyclophosphan*[tiab] OR cytophosphan*[tiab] OR sendoxan[tiab] OR cytoxan[tiab] OR endoxan[tiab] OR neosar[tiab] OR "nsc 26271"[tiab] OR procytox[tiab] OR "b 518" [tiab] OR cyclofosfamide[tiab] OR ciclofosfamid*[tiab]