TY - JOUR AU - Rojas, L B; Grignon-Dubois, M; Rezzonico, B TI - Pentacyclic triterpenes from Sarcostemma clausum JO - Chem Nat Comp VL - 40 PY - 2004 DO - 10.1007/s10600-005-0037-7 SP - 565 EP - 568 N1 - et al. ER -