| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/S0090-4295(11)02579-9 | |
| Urine and Urination | free resource | MedlinePlus Health Information | https://medlineplus.gov/urineandurination.html |
| subscription/membership/fee required | ClinicalKey | https://www.clinicalkey.com/content/playBy?issn=&vol=79&issue=2&pgfirst=428 |