title: Brain stem anesthesia following retrobulbar block.
mesh_terms: D000368:Aged; D001933:Brain Stem / Q000187:drug effects*; D002045:Bupivacaine / Q000008:administration & dosage; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000009:adverse effects*; D013508:Ophthalmologic Surgical Procedures
chemical_list: D002045:Bupivacaine