Name Info Provider Link
free resource Medknow Publications and Media Pvt Ltd http://www.heartviews.org/article.asp?issn=1995-705X;year=2020;volume=21;issue=1;spage=6;epage=16;aulast=El%2DMenyar
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=32082494.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32082494/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/32082494