[The experience of using epidural anesthesia during the performance of surgery on middle-aged and elderly patients].
O M
OM
Levchuk
V M
VM
Iakymets'
D000368:Aged; D000767:Anesthesia, Epidural / Q000379:methods*; D000771:Anesthesia, Intravenous; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013514:Surgical Procedures, Operative / Q000379:methods*