title: Estimated W-values for negative pions in tissue-equivalent gas, CO2 and N2.
mesh_terms: D002245:Carbon Dioxide; D004601:Elementary Particles; D007477:Ions; D008954:Models, Biological; D009584:Nitrogen; D014894:Weights and Measures
chemical_list: D007477:Ions; D002245:Carbon Dioxide; D009584:Nitrogen