1 Alvin M. Matsumoto , and William J. Bremner, Modulation of Pulsatile Gonadotropin Secretion by Testosterone in Man
2 Mark Phillippe, Trevania Saunders, Shrikar Bangalore, A mechanism for testosterone modulation of alpha-1 adrenergic receptor expression in the DDT1 MF-2 smooth muscle myocyte, Molecular and Cellular Biochemistry January 1991, Volume 100, Issue 1, pp 79-90
3 Stefan M Gold1,2, Sara Chalifoux1, Barbara S Giesser1 and Rhonda R Voskuhl*, Immune modulation and increased neurotrophic factor production in multiple sclerosis patients treated with testosterone, Journal of Neuroinflammation 2008, 5:32 doi:10.1186/1742-2094-5-32
4 J H Urban, A C Bauer-Dantoin, and J E Levine, Neuropeptide Y gene expression in the arcuate nucleus: sexual dimorphism and modulation by testosterone, First Published Online: July 01, 2013
5 Paulo Serafini, M.D., Paul D. Silva, M.D., Richard J. Paulson, M.D., Karen Elkind-Hirsch, Ph.D., Mary Hernandez, B.A., Rogerio A. Lobo, M.D.correspondence, Acute modulation of the hypothalamic-pituitary axis by intravenous testosterone in normal women, December 1986Volume 155, Issue 6, Pages 1288-1292
6 Tongkat ali is rare, and the market is full of fakes. At least 90 percent of what is sold on the Internet is fake, and scams are widely reported on the web.