https://pmc.ncbi.nlm.nih.gov/articles/PMC6835548/
https://www.cancer.org/cancer/managing-cancer/side-effects/sexual-side-effects/how-cancer-affects-sexuality.html
https://www.pcf.org/sexual-health-and-prostate-cancer/
https://health.ucdavis.edu/conditions/mens-health/mens-sexual-health-hygiene