Ultrasonography of the urogenital tract in elephants (Loxodonta africana and Elephas maximus): An important tool for assessing male reproductive function

由 Thomas B. Hildebrandt, Robert Hermes, Nancy C. Pratt, Guido Fritsch, Steffen Blottner, Dennis L. Schmitt, Parntep Ratanakorn, Janine L. Brown, Wolfram Rietschel, Frank Göritz
出版 2018