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The progressive fall in the status and numbers of general practitioners has produced a dangerous void in the field of comprehensive medical care. The Millis Commission and other national study committees have recommended that family practice be made a board-certified specialty in order to restore the status and numbers of family physicians. The scope of family practice that is envisioned, however, would be so restricted in depth as to raise serious doubts that sufficient medical graduates would be attracted to careers in this new specialty. Better training in broadly-based general or family practice—rather than a specialty board, per se—is the only realistic way to elevate status and attract more medical students to this field.  相似文献   

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Field strains of the house fly (Musca domestica L. Diptera: Muscidae) were collected in April and September 2002 from cow farms (Antalya, Izmir) and garbage dumps (Adana, Ankara, Istanbul, Sanliurfa) in Turkey. The resistance levels of first to fifth generation offspring were evaluated against six insecticides (cypermethrin, cyphenothrin, deltamethrin, permethrin, resmethrin, fenitrothion). Resistance levels for pyrethroid group insecticides ranged from 23.27 (permethrin-Istanbul fall strain) to 633.09 (cypermethrin-Izmir spring strain) and for fenitrothion ranged from 5.78 (Istanbul fall strain) to 51.04 (Antalya spring strain). Our results showed that pyrethroid resistance was high and changed from spring to fall in relation to usage and application frequencies of these compounds at the study sites. Although fenitrothion resistance levels were determined to be lower than pyrethroids, these levels were still high and led to control failure. Flies from cow farms were more resistant than those from garbage dumps, but resistance levels for Sanliurfa and Adana strains were also high in relation to usage of different insecticides for agricultural purposes. Although resistance levels against different pyrethroids decreased from spring to fall, these levels still indicated the presence of a strong selective pressure on the populations.  相似文献   

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