background: the objective of this study was to evaluate the efficacy of sanitization of lettuce according to the protocols set forth by iranian ministry of health and medical education for reducing populations of total coliform, fecal coliform, and helminth eggs present on lettuce. methods: in the present study, we determined the load of total coliform, fecal coliform, and parasites of lettuce....

introduction: to assess efficiency as a relative concept, the difference between real and expected values must be determined by comparing the productivity of economic units of industry and the efficiency in potential production conditions. as economic units, hospitals need to utilize efficiency analysis in order to make optimal use of their available resources. therefore, the present study comp...