^Wali B, Sayeed I, Guthrie DB, Natchus MG, Turan N, Liotta DC, Stein DG (October 2016). "Evaluating the neurotherapeutic potential of a water-soluble progesterone analog after traumatic brain injury in rats". Neuropharmacology. 109: 148–158. doi:10.1016/j.neuropharm.2016.05.017. PMID27267687. S2CID19906601.
^Guthrie, D. B., Lockwood, M. A., Natchus, M. G., Liotta, D. C., Stein, D. G., & Sayeed, I. (2017). U.S. Patent No. 9,802,978. Washington, DC: U.S. Patent and Trademark Office. https://patents.google.com/patent/US9802978B2/en
^MacNevin CJ, Atif F, Sayeed I, Stein DG, Liotta DC (October 2009). "Development and screening of water-soluble analogues of progesterone and allopregnanolone in models of brain injury". J. Med. Chem. 52 (19): 6012–23. doi:10.1021/jm900712n. PMID19791804.