V. R. C. Boccato and E. M. Ferreira, “Comparative study between focus group and verbal protocol in group in the improvement of controlled vocabulary in Physical Therapy: a qualitative: cognitive methodological proposal”, InCID: Rev. Ci. Inf. Doc., vol. 5, no. 1, pp. 47–68, Mar. 2014, doi: 10.11606/issn.2178-2075.v5i1p47-68.