S. Virtanen

Azidocillin and ampicillin concentrations in middle ear effusion.

E. Lahikainen, M. Vuori, S. Virtanen, 1977, Acta oto-laryngologica.

Gram-positive, motile, cluster-forming cocci as a cause of urinary infection

S. Virtanen, 1974, Journal of clinical pathology.

Lysozyme activity and immunoglobulins in middle ear effusion fluid in acute purulent otitis media and in otitis media with effusion.

E. Lahikainen, S. Virtanen, 1979, Scandinavian journal of infectious diseases.

Ampicillin concentrations in middle ear effusions in acute otitis media after administration of bacampicillin

E. Lahikainen, S. Virtanen, 2005, Infection.

Tonsillectomy as treatment of acute peritonsillitis, with clinical and statistical observations

S. Virtanen, 1949 .

Gram-positive, motile, cluster-forming cocci as a cause of urinary infection

S. Virtanen, 1974, Journal of clinical pathology.