The role of Vitamin D for incidence of and mortality after aneurysmal subarachnoid hemorrhage
Andia Mirbagheri (Mannheim), Svetlana Hetjens (Mannheim), Jos Kanning (Utrecht / NL), Kristiina Rannikmäe (Edinburgh / GB), Nima Etminan (Mannheim), Ynte Ruigrok (Utrecht / NL), Gabriel Rinkel (Mannheim; Utrecht / NL)