title: An anatomic barrier to urethral catheterization in male Macropodidae.
mesh_terms: D000818:Animals; D007614:Macropodidae / Q000033:anatomy & histology*; D008297:Male; D008394:Marsupialia / Q000033:anatomy & histology*; D014521:Urethra / Q000033:anatomy & histology*; D014546:Urinary Catheterization / Q000662:veterinary*