https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-5 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-7 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-9 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-4 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-6 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-3 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-2 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-8 https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-12-1