Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0277-9536(19)30137-6
Safety free resource MedlinePlus Health Information https://medlineplus.gov/safety.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31387766/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/31387766