00463nas a2200157   4500000000100000008004100001100001500042700001500057700001400072700001700086700001500103245015500118300001000273490000800283022001400291       2010                            d1 aR. Cornish1 aJ. Macleod1 aJ. Strang1 aP. Vickerman1 aM. Hickman00aRisk of death during and after opiate substitution treatment in primary care: prospective observational study in UK General Practice Research Database  ac54750 v341  a0959-8138