Clarke's Test for Chondromalacia Patellae (Patellofemoral Pain Syndrome)
Patellar Grind Test (Clarke's Sign) - What It Is and How It's Done
This is a road sign that marks the Lewis and Clark Trail. There is a silhouetted graphic on the sign of the explorers, Lewis and Clark against a white background. - SuperStock
Patellar Grind Test (Clarke Sign)
Clark's Teaberry Gum Original Art Sign • Antique Advertising