title: Allergic reaction secondary to voiding cystourethrography.
mesh_terms: D002648:Child; D003973:Diatrizoate / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011859:Radiography; D014521:Urethra / Q000000981:diagnostic imaging*; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D014581:Urticaria / Q000139:chemically induced*
chemical_list: D003973:Diatrizoate