Gastroprotective effects of the essential oil of Hyptis crenata Pohl ex Benth. on gastric ulcer models - Diniz, L RL; Vieira, C FX; Santos, E CD; Lima, G C; Aragão, K KV; Vasconcelos, R P; da Costa Araújo, P C; Vasconcelos, Y AG; Oliveira, A C; Oliveira, H D; Portella, V G; Coelho-de-Souza, A N (J Ethnopharmacol, 2013)