Name	Info	Provider	Link
Urine and Urination	free resource	MedlinePlus Health Information	https://medlineplus.gov/urineandurination.html
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pone.0207822
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30533050/
Full Text at the institutional repository	free resource	Andalusian Health Repository	http://hdl.handle.net/10668/13302
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30533050
Full text from	free resource	Diposit Digital de la Universitat de Barcelona	http://hdl.handle.net/2445/130501