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Rockville, Md.: US Dep. of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research, 1993
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Rockville, Md.: US Dep. of Health and Human Services, Public Health Service, Agency for Health Care Policy and Research, 19XX-
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Rockville, Md.: AHCPR, 1991- / 91.0041(1991) -
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Rockville, Md., 19XX-
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Rockville, Md., 19XX-