Cytotoxic activity of the chloroform fraction of Piper aduncum and its effect on the cell cycle in gastric cancer cell lines. - Mayanga-Herrera A; Tapia-Rojas S; Fukusaki-Yoshizawa A; Marcelo-Rodríguez Á; Amiel-Pérez J (Revista peruana de medicina experimental y salud publica, 2020)