Anticancer and α-chymotrypsin inhibiting diterpenes and triterpenes from Salvia leriifolia - Choudhary, M I; Hussain, A; Adhikari, A; Marasini, B P; Sattar, S A; Wahab, A T; Hussain, N; Ayatollahi, S AMAtta-ur-Rahman (Phytochem Lett, 2013)