https://bmcobes.biomedcentral.com/articles/10.1186/s40608-016-0142-0
https://bmcobes.biomedcentral.com/articles/10.1186/s40608-016-0130-4
https://bmcobes.biomedcentral.com/articles/10.1186/s40608-016-0141-1
https://bmcobes.biomedcentral.com/articles/10.1186/s40608-016-0138-9
https://bmcobes.biomedcentral.com/articles/10.1186/s40608-017-0143-7
https://bmcobes.biomedcentral.com/articles/10.1186/s40608-016-0139-8