Sampathi Sunitha, Wankar Jitendra, Dodoala Sujatha, and Mankala Santhosh Kumar, “Design and Evaluation of Hydrogel-Thickened Microemulsion for Topical Delivery of Minoxidil: Minoxidil Microemulsions for Topical Delivery”, Iran J Pharm Sci, vol. 9, no. 4, pp. 1–14, Oct. 2013.