label: Identify risk factors for venous ulcers (e.g., varicose veins, deep vein thrombosis, chronic venous insufficiency, poor calf muscle function, arteriovenous fistulae, obesity, history of leg fracture)
label_lc: identify risk factors for venous ulcers (e.g., varicose veins, deep vein thrombosis, chronic venous insufficiency, poor calf muscle function, arteriovenous fistulae, obesity, history of leg fracture)