Ahmed أ. ث., Qasem ي. ع. ., and Saeed م. ع., “Detection of Cyproheptadine and some of the cortisol derivatives added to the Chinese herbs traded in pharmacies and traditional medicine shops –Aden governorate”, Univ. Aden J. Nat. and Appl. Sc., vol. 23, no. 1, pp. 93–108, Apr. 2019.