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Hafez, S.S.; Abdel-Salam, H.A., chemical composition and antimicrobial activity of the volatile constituents of thuja occidentalis L. growing in Egipt, Alexandria J. Pharm. Sci., 2004, 18, 1, 41-47. [all data]
El-Shazily, A.M.; Hafez, S.S.; Wink, M., Comparative study of the essential oils and extracts of Achillea fragrantissima (Forssk.) Sch. Bip. and Achillea santolina L. (Asteraceae) from Egypt, Pharmazie, 2004, 59, 226-230. [all data]