https://www.daysoftheyear.com/days/paddle-for-perthes-disease-awareness-day/
Perthes disease affects the hip joint in young children, causing pain and limping. It happens when blood stops reaching the ball part of the hip, leading
perthes diseaseawareness daypaddlejulydays
https://www.nationwidechildrens.org/conditions/legg-calve-perthes-disease
Legg Calve Perthes Disease, also known as Perthes or LCP, is a condition affecting one or both hips typically in children ages 3 to 10 years old
perthes diseaseleggcalvelcpnationwide