About: http://webisa.webdatacommons.org/115881151

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Ethical ap proval for the survey was obtained from the Human Subjects Committee at Johns Hopkins University because this study??s first author was an employee of the university at the time of the study.
http://www.w3.org/ns/prov#wasQuotedFrom	scielosp.org