L. Horttonen

Effects of anaesthesia on the psychological function of patients.

E. Helkala, A. Hollmen, P. Ryhänen, 1978, Annals of clinical research.

Blood pressure changes during and after anaesthesia in treated and untreated hypertensive patients.

A. Hollmen, E. Saarela, P. Ryhänen, 1978, Annales chirurgiae et gynaecologiae.