WHO. A guide for epidemiological studies of oral manifestation of HIV infection. Geneva: WHO.
Trích dẫn kiểu ChicagoWHO. A Guide for Epidemiological Studies of Oral Manifestation of HIV Infection. Geneva: WHO.
MLA citiranjeWHO. A Guide for Epidemiological Studies of Oral Manifestation of HIV Infection. Geneva: WHO.
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