title: Opioids for severe pain: little change over 15 years.
authors: R M
authors: RM
authors: Kanner
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006297:Health Services Accessibility / Q000639:trends*; D006801:Humans; D009519:New York City; D010166:Palliative Care / Q000639:trends*
chemical_list: D000701:Analgesics, Opioid