P. M. Vapalahti

Intracranial arterial aneurysm in a three-month-old infant. Case report.

P. M. Vapalahti, P. Schugk, L. Tarkkanen, 1969, Journal of neurosurgery.

Spontaneous intracerebral haematoma in a patient undergoing haemodialysis.

S. Stenman, P. Häyry, P. M. Vapalahti, 1970, Lancet.