TY - RPRT TI - Heroin users in general practice: ascertainment and features. AU - R G Neville AU - J F McKellican AU - J Foster PY - 1988 DO - 10.1136/bmj.296.6624.755 UR - https://pubmed.ncbi.nlm.nih.gov/3126963/ ID - 3126963 ER -