Femi Retna, Arvind, A. and Komala (2021) “A study on comparison of efficacy of sodium valproate and amitriptyline in the management of migraine”, International Journal of Pharmacological Research, 11(12), p. e5699. Available at: https://ssjournals.co.in/index.php/ijpr/article/view/5699 (Accessed: 16 February 2026).