Surcel, H. M., Syrjälä, H., Karttunen, R., Tapaninaho, S., & Herva, E. (1991). Development of Francisella tularensis antigen responses measured as T-lymphocyte proliferation and cytokine production (tumor necrosis factor alpha, gamma interferon, and interleukin-2 and -4) during human tularemia. Infect Immun.

Surcel, H M., H. Syrjälä, R. Karttunen, S. Tapaninaho, and E. Herva. "Development of Francisella Tularensis Antigen Responses Measured As T-lymphocyte Proliferation and Cytokine Production (tumor Necrosis Factor Alpha, Gamma Interferon, and Interleukin-2 and -4) During Human Tularemia." Infect Immun 1991.

Surcel, H M., et al. "Development of Francisella Tularensis Antigen Responses Measured As T-lymphocyte Proliferation and Cytokine Production (tumor Necrosis Factor Alpha, Gamma Interferon, and Interleukin-2 and -4) During Human Tularemia." Infect Immun 1991.