| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | Medicina Oral S.L. | http://www.medicinaoral.com/medoralfree01/aop/23665.pdf | |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32388515/ | |
| Full Text at the institutional repository | free resource | Andalusian Health Repository | http://hdl.handle.net/10668/15536 |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/32388515 |