IN VITRO ANTI-LEISHMANIAL ACTIVITY AGAINST CUTANEOUS LEISHMANIA PARASITES AND PRELIMINARY PHYTOCHEMICAL ANALYSIS OF FOUR YEMENI MEDICINAL PLANTS Journal title: Universal Journal of Pharmaceutical Research Authors: Manal Mutahar Ali Al- Hajj, Hassan A Al-Shamahy, Bushra Y Alkhatib, Bushra A Moharram Subject(s): Medicine