Name Info Provider Link
free resource BioMed Central https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-020-04256-8
Choosing a Doctor or Health Care Service free resource MedlinePlus Health Information https://medlineplus.gov/choosingadoctororhealthcareservice.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32366328/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/32366328