M. Virkkila

comparison of three techniques . Regional anaesthesia for cataract surgery :

K. Leino, Heikki Palve, T. Ali-Melkkila, 2022 .

Pharmacokinetics and effects of i.m. alfentanil as premedication for day-case ophthalmic surgery in elderly patients.

J. Kanto, H. Soini, M. Virkkilä, 1994, British journal of anaesthesia.