Olga MalinovskayaEventsAn expert warns that a deficiency of vitamin D in autumn may reduce…Recent coverageDoctor explained what vitamin D shortage in autumn brings — ВестиDoctor named reasons for fatigue and apathy in autumn - Gazeta SPB RU - news of St. Petersburg — Gazeta.SPbDoctor revealed causes of autumn blues — ВестиDoctor reveals health problems in children after taking the EGE exam — Вести