1. Spin labeling;Berliner,1976
2. Use of nitroxides to measure redox metabolism in cells and tissues;Swartz;J. Chem. Soc. Faraday Trans.,1987
3. Metabolically responsive contrast agents;Swartz,1989
4. Measurements of the concentration of oxygen in biological systems using EPR techniques;Swartz,1989
5. Measurement of oxygen by EPRI and EPRS;Swartz,1991