Introduction: Seasonal affective disorder (SAD) is a proposed mental disorder still controversial. This condition is prevalent in northern latitudes. but few studies have been conducted at locations in the southern hemisphere. It is usually assessed by the Seasonal Pattern Assessment Questionnaire (SPAQ). https://pzicyxkjyev73.timeblog.net/70683209/ephrin-a1-ligand-based-car-t-cells-for-immunotherapy-of-epha2-positive-cancer