COMPANY DOCUMENTATION   The visual comparison between ground plant material and extract Comparative analytical investigation of tribulus terrestris preparations (D.Obreshkova, T.Pangarova, S.Milkov and D.Dinchev, Pharmacia, vol. XLV, bk. 2/1998, 11. Sopharma Ltd. BPG Ltd. Ref. # EB0280-080) Content of One TRIBESTAN (Sopharma documentation; BPG Ref. # EB0280-424-012) PHARMACOKINETIC STUDIES OF TRIBESTAN (N. Dikova, V. Ognyanova Chemical Pharmaceutical Research Institute, Sofia, Bulgaria, 1981; BPG Ref. # EB0280-424-011) TRIBESTAN EFFECT ON THE CONCENTRATION OF SOME HORMONES IN THE SERUM OF HEALTHY SUBJECTS (S. Milanov, A. Maleeva, M. Taskov, RIRR - Radioisotope and Radioimmunological Laboratory, Sofia, Chemical Pharmaceutical Research Institute, Sofia, Bulgaria; BPG Ref. # EB0280-424-007) CLINICAL TESTING OF TRIBESTAN (Kumanov F., E. Bozadjieva, M. Platonova, V. Ankov; Institute of Endocrinology, Gerontology, Geriatrics and HMMI; Director: E. Bozadjieva; BPG Ref. # EB0280-424-008) CLINICAL TREATMENT WITH TRIBESTAN (PHARMACHIM) IN WOMEN WITH CLIMACTERIC SYNDROME (Dr. Pavleta Tabakova, Dr. Mitko Dimitrov, Dr. Bozhidar Tashkov (Head physician); Director of Studies Prof. Dr. S. Dokumov; BPG Ref. # EB0280-424-010) CLINICAL STUDY OF TRIBESTAN IN FEMALES WITH ENDOCRINE STERILITY (Tabakova, M. Dimitrov, K. Ognyanov, N. Popvassilev First Obstetric-gynecological Hospital "T. Kirkova", Sofia; Head physician Dr. M. Dimitrov; BPG Ref. # EB0280-424-009)