PAPER Dokkedal U, Wod M, Thinggaard M, Hansen TG, Rasmussen LS, Christensen K, Mengel-From J Apolipoprotein E ε4 and cognitive function after surgery in middle-aged and elderly Danish twins. Eur J Anaesthesiol. 2020 Nov;37(11):984-991. PubMed: 32618758