Name Info Provider Link
subscription/membership/fee required Ingenta plc http://jgv.microbiologyresearch.org/pubmed/content/journal/jgv/10.1099/vir.0.015446-0
Bowel Movement free resource MedlinePlus Health Information https://medlineplus.gov/bowelmovement.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19759238/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/19759238