D51	Effective supplier performance monitoring- a pre-requisite to improving the delivery of HIV/AIDS commodities in Uganda	E-poster	Monitoring and evaluation of health systems
D51	Mother to child transmission of HIV prevention in Brazilian maternity hospitals: results from an national assessment	E-poster	Monitoring and evaluation of health systems
D51	Strategies to prevent HIV mother-to-child transmission through breastfeeding: results of a national survey in Brazilian Maternity Hospitals, 2020	E-poster	Monitoring and evaluation of health systems
D53	Validation of the combined Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS) among people with HIV on antiretroviral therapy in Vietnam	E-poster	Strengthening social and behavioural data collection and analysis
D53	Comparison of question-based and dates-based measures for sexual network degree among men who have sex with men in the United States	E-poster	Strengthening social and behavioural data collection and analysis
D53	Estimating proportions of hidden populations under respondent-driven sampling	E-poster	Strengthening social and behavioural data collection and analysis
D53	'Finding' young voices: lessons learnt from remote research with adolescents and young people living with or closely affected by HIV in South Africa during the time of COVID-19	E-poster	Strengthening social and behavioural data collection and analysis
D53	Decision making for invasive and non-invasive optional procedures within an acute HIV research cohort in Bangkok	E-poster	Strengthening social and behavioural data collection and analysis
D54	A novel approach to the definition of a syndemic: the case of Substance Abuse, Tuberculosis and HIV/AIDS in South Africa (SATHA)	E-poster	Mixed methods, integrated approaches and synergies in HIV research and intervention
D55	Cyclical engagement in HIV care: a qualitative study of clinic transfers to re-enter HIV care in Cape Town, South Africa	E-poster	Qualitative and ethnographic methods in HIV research