TY - BOOK ED - UNAIDS/WHO Working Group on Global HIV/AIDS/STI Surveillance. ED - World Health Organization. ED - UNAIDS. TI - When and how to use assays for recent infection to estimate HIV incidence at a population level SN - 9789241501675 PY - 2011/// CY - Geneva PB - World Health Organization KW - HIV infections KW - epidemiology KW - HIV seroprevalence KW - AIDS serodiagnosis KW - Populations surveillance UR - http://apps.who.int/iris/ ER -