de la Puerta, R., R. Maestro Durán, and V. Ruiz Gutiérrez. 1997. “Pharmacological Activity of the Fraction Isolated from Virgin Olive Oil Containing the Sterols and Triterpenic Alcohols”. Grasas Y Aceites 48 (2):93-95. https://doi.org/10.3989/gya.1997.v48.i2.775.