title: Radiation chemistry of nitrogen and sulfur heterocyclics.
mesh_terms: D002849:Chromatography, Gas; D005609:Free Radicals; D006571:Heterocyclic Compounds; D007093:Imidazoles; D009584:Nitrogen; D011719:Pyrazines; D011720:Pyrazoles; D011743:Pyrimidines; D011758:Pyrroles; D011854:Radiochemistry; D013455:Sulfur; D013777:Tetrazoles; D013844:Thiazoles; D013876:Thiophenes; D014227:Triazines; D014230:Triazoles
chemical_list: D005609:Free Radicals; D006571:Heterocyclic Compounds; D007093:Imidazoles; D011719:Pyrazines; D011720:Pyrazoles; D011743:Pyrimidines; D011758:Pyrroles; D013777:Tetrazoles; D013844:Thiazoles; D013876:Thiophenes; D014227:Triazines; D014230:Triazoles; D013455:Sulfur; D009584:Nitrogen