The KDEP Trial: Protocol for a phase II, multicenter, open label, randomized controlled trial to evaluate the efficacy of ketogenic diet for symptomatic improvement of moderate to severe Major Depressive Disorder. PPCR [Internet]. 2022 Dec. 21 [cited 2024 May 2];8(3):77-83. Available from: https://journal.ppcr.org/index.php/ppcrjournal/article/view/177