External quality assessment program on CD4+ t-lymphocyte counts for persons with HIV/AIDS in Thailand: History and accomplishments.
Pobkeeree, Vallerut; Lerdwana, Surada; Siangphoe, Umaporn; Noulsri, Egarit; Polsrila, Korakot; Nookhai, Somboon; Pattanapanyasat, Kovit.
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| IMSEAR | ID: sea-136297