publication Journal Article 2013 In vitro antiprotozoal activity of triterpenoid constituents of Kleinia odora growing in Saudi Arabia more of publication Presence of laxative and antidiarrheal activities in Periploca aphylla: A Saudi medicinal plant In vitro antiprotozoal activity of triterpenoid constituents of Kleinia odora growing in Saudi Arabia by - Al Musayeib, N. M., Mothana, R. A., El Gamal, A. A., Al-Massarani, S. M., & Maes, L. 2013 Study of the in vitro antiplasmodial, antileishmanial and antitrypanosomal activities of medicinal plants from Saudi Arabia. by Al-Musayeib, N. M., Mothana, R. A., Al-Massarani, S., Matheeussen, A., Cos, P., & Maes, L. 2012