1. New trend to hospital ERs crosses country;Medical World News,1978
2. Slicing the pie thinner;Friedman;Hospitals,1982
3. Convenience clinics, your newest rival for patients?;Eisenberg;Medical Economics,1980
4. Freestanding centers vie for hospital patients;Bendix;Mod Health Care,1982
5. The National Ambulatory Medical Care Survey, United States, 1979 summary;Gagnon;Vital Health Stat,1982