HOW TO TRIM YOUR NAILS?（AAD）https://www.aad.org/public/everyday-care/nail-care-secrets/basics/how-to-trim-nails Accessed May 5, 2022
Fingernails: Do’s and don’ts for healthy nails（Mayo Clinic）https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/nails/art-20044954 Accessed May 5, 2022
Nail Hygiene（CDC）https://www.cdc.gov/healthywater/hygiene/hand/nail_hygiene.html Accessed May 5, 2022
Nailing It: How to Trim Your Baby’s Fingernails（AAP）https://www.healthychildren.org/English/ages-stages/baby/bathing-skin-care/Pages/Nails-Nails-Everywhere.aspx Accessed May 5, 2022
Ingrown toenail: How to cut toenails properly（NIH）https://www.ncbi.nlm.nih.gov/books/NBK513131/ Accessed May 5, 2022