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Harding, Elizabeth, Beckworth, Colin, Fesselet, Jean-Francois, Lenglet, Annick, Lako, Richard and Valadez, Joseph 
ORCID: https://orcid.org/0000-0002-6575-6592
(2017)
'Using Lot Quality Assurance Sampling to assess access to water, sanitation and hygiene services in
a refugee camp setting in South Sudan: A feasibility study'. BMC Public Health, Vol 17, e643.
Beckworth, Colin, Anguyo, Robert, Kyakulaga, Francis Cranmer, Lwanga, Stephen and Valadez, Joseph ORCID: https://orcid.org/0000-0002-6575-6592
(2016)
'Can local staff reliably assess their own programs? A confirmatory test-retest study of Lot Quality Assurance Sampling data collectors in Uganda'. BMC Health Services Research, Issue 16:396.
Jeffery, Caroline ORCID: https://orcid.org/0000-0002-8023-0708, Beckworth, Colin, Hadden, Wilbur C, Ouma, Joseph, Lwanga, Stephen K and Valadez, Joseph ORCID: https://orcid.org/0000-0002-6575-6592
(2015)
'Associations with HIV testing in Uganda: an analysis of the Lot Quality Assurance Sampling database 2003–2012'. AIDS Care, Vol 28, Issue 4, pp. 519-523.
Beckworth, Colin, Davis, Rosemary H., Faragher, Brian and Valadez, Joseph ORCID: https://orcid.org/0000-0002-6575-6592
(2014)
'Can health workers reliably assess their own work? A test-retest study of bias among data collectors conducting a Lot Quality Assurance Sampling survey in Uganda.'. Health Policy and Planning, Vol 30, Issue 2, pp. 181-186.