https://globalizationandhealth.biomedcentral.com/articles/10.1186/1744-8603-7-1
https://globalizationandhealth.biomedcentral.com/articles/10.1186/1744-8603-7-3
https://globalizationandhealth.biomedcentral.com/articles/10.1186/1744-8603-7-2
https://globalizationandhealth.biomedcentral.com/articles/10.1186/1744-8603-7-4