Costs and economies of scale in repeated home-based HIV counselling and testing: Evidence from the ANRS 12249 treatment as prevention trial in South Africa journalArticle Bousmah, Marwân-al-Qays Iwuji, Collins Okesola, Nonhlanhla Orne-Gliemann, Joanna Pillay, Deenan Dabis, François Larmarange, Joseph Boyer, Sylvie Licence Creative Commons Attribution 4.0 International (CC-BY) 2022-07-01 ISSN 0277-9536 DOI 10.1016/j.socscimed.2022.115068