| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | American Chemical Society | https://doi.org/10.1021/acs.analchem.9b02620 | |
| Urine and Urination | free resource | MedlinePlus Health Information | https://medlineplus.gov/urineandurination.html |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31539226/ | |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/31539226 |