Rikihisa, Y., Pretzman, C. I., Johnson, G. C., Reed, S. M., Yamamoto, S., & Andrews, F. (1988). Clinical, histopathological, and immunological responses of ponies to Ehrlichia sennetsu and subsequent Ehrlichia risticii challenge.

Rikihisa, Y., C I. Pretzman, G C. Johnson, S M. Reed, S. Yamamoto, und F. Andrews. Clinical, Histopathological, and Immunological Responses of Ponies to Ehrlichia Sennetsu and Subsequent Ehrlichia Risticii Challenge. 1988.

Rikihisa, Y., et al. Clinical, Histopathological, and Immunological Responses of Ponies to Ehrlichia Sennetsu and Subsequent Ehrlichia Risticii Challenge. 1988.