Document 0175 DOCN M9460175 TI Knowledge, preference, or both: it's hard to tell without the data [letter] DT 9408 AU Goodman E SO Am J Public Health. 1994 May;84(5):867-8. Unique Identifier : AIDSLINE MED/94234428 DE Adult Epidemiologic Methods Human HIV Infections/*DIAGNOSIS/EPIDEMIOLOGY *Knowledge, Attitudes, Practice Middle Age Risk Factors Socioeconomic Factors United States LETTER JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).