S. Orava

Assay of protocollagen lysyl hydroxylase activity in the skin of human subjects and changes in the activity with age.

K. Kivirikko, H. Anttinen, L. Ryhänen, 1973, Clinica chimica acta; international journal of clinical chemistry.

Stress fracture of the seventh rib in a squash player

U. Kujala, U. Kujala, S. Orava, 1991 .