title: Unusual clinical course of accidental subdural local anesthetic injection.
mesh_terms: D000328:Adult; D000767:Anesthesia, Epidural / Q000009:adverse effects*; D000773:Anesthesia, Obstetrical / Q000009:adverse effects*; D002404:Catheterization / Q000009:adverse effects; D005260:Female; D006801:Humans; D009407:Nerve Block; D011247:Pregnancy; D011343:Procaine / Q000008:administration & dosage / Q000031:analogs & derivatives*; D011859:Radiography; D013355:Subdural Space / Q000000981:diagnostic imaging
chemical_list: D011343:Procaine; C004616:chloroprocaine