A. Viitanen

Endometrial stromal sarcoma: a report of nine cases.

R. Erkkola, J. Mäenpää, E. Taina, 1989, Gynecologic oncology.

Identification of messenger RNA for human type II collagen

E. Vuorio, K. Elima, A. Viitanen, 1984, FEBS letters.

Application of the polymerase chain reaction and immunofluorescence techniques to the detection of bacteria in Yersinia-triggered reactive arthritis.

R. Lahesmaa, M. Skurnik, P. Toivanen, 1991, Arthritis and rheumatism.

Lack of hybridization between Yersinia enterocolitica and HLA-B27 DNA.

A. Toivanen, R. Lahesmaa-Rantala, A. Viitanen, 1988, The Journal of rheumatology.