Name Info Provider Link
subscription/membership/fee required Atypon https://journals.sagepub.com/doi/10.1891/1078-4535.24.4.220?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
subscription/membership/fee required HighWire https://connect.springerpub.com/content/sgrcn/24/4/220
Talking With Your Doctor free resource MedlinePlus Health Information https://medlineplus.gov/talkingwithyourdoctor.html