Stein Backes, D. . (2011) “The focal group as a technique for data collection and analysis in qualitative research: DOI: 10.15343/0104-7809.2011354438442”, O Mundo da Saúde. São Paulo, 35(4), pp. 438–442. Available at: https://revistamundodasaude.emnuvens.com.br/mundodasaude/article/view/538 (Accessed: 30 August 2025).