RT Journal Article SR Electronic T1 Naloxone nasal spray JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 137 OP 140 DO 10.1136/dtb.2019.000035 VO 57 IS 9 YR 2019 UL http://dtb.bmj.com/content/57/9/137.abstract AB