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

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