For the systematic categorization of publications, a structured instrument was used containing: article title, year of publication, objective of the study, study type and level of evidence. The quality of the evidence is classified into six levels, namely: Level 1 - meta-analysis of multiple controlled studies; Level 2 - individual study with quasi-experimental design level 3 -study with quasi-experimental design as study without randomization with pre and post-test single group, time series or case-control; Level 4 - study with non-experimental design as descriptive correlational and qualitative research or case studies; Level 5 - report of cases or data obtained in a systematic manner, verifiable quality or program evaluation data; Level 6 - opinion of reputable authorities based on clinical competence or opinion of the expert committees, including interpretations of information not based in research.