食道梗阻，经鼻饲喂，马
Photograph of the muzzle of a horse with esophageal obstruction (choke). Note the characteristic green nasal discharge.
Courtesy of Dr. Jan Hawkins, Purdue University.
在这些主题中
Photograph of the muzzle of a horse with esophageal obstruction (choke). Note the characteristic green nasal discharge.
Courtesy of Dr. Jan Hawkins, Purdue University.
