https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-176 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-182 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-169 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-175 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-181 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-179 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-180 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-178 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-167 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-171 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-173 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-177 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-170 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-168 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-172 https://ro-journal.biomedcentral.com/articles/10.1186/1748-717X-6-174