Name Info Provider Link
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/30377969/
subscription/membership/fee required Springer https://dx.doi.org/10.1007/s11356-018-3479-8
free resource Europe PubMed Central https://europepmc.org/abstract/MED/30377969