title: A comparison of tar, carbon monoxide and pH levels in smoke from marihuana and tobacco cigarettes.
mesh_terms: D002188:Cannabis; D002248:Carbon Monoxide / Q000032:analysis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010947:Plants, Toxic; D012906:Smoke / Q000009:adverse effects / Q000032:analysis*; D013638:Tars / Q000032:analysis*; D014026:Nicotiana
chemical_list: D012906:Smoke; D013638:Tars; D002248:Carbon Monoxide