Place of publication

Year of publication

Methodological aspects

Level of evidence

Brazil

2014

Transversal, descriptive and qualitative

IV

Brazil

2013

Transversal, descriptive and qualitative

IV

Brazil

2008

Case study

IV

Brazil

2013

Transversal, descriptive, quantitative and qualitative

IV

USA

2005

Case study

IV

USA

1997

Case study

IV

USA

2008

Transversal, analytical e quantitativeandqualitative

III.2

USA

2002

Transversal, analytical and quantitative

IV

USA

1999

Transversal, analytical and quantitative

IV

USA

2011

Transversal, descriptive and qualitative

IV

USA

2015

Longitudinal, descriptive and quantitative

III.3

USA

2014

Transversal, descriptive and qualitative

IV

Brazil

2007

Bibliographic research

IV

USA

2012

Bibliographic research

IV

USA

2015

Bibliographic research

IV

USA

1999

Bibliographic research

IV

USA

1996

Bibliographic research

IV

USA

2003

Bibliographic research

IV