This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around Arm & Elbow, Subject name: Orthopaedics
Cozen test is done for? 
Select and explain. 
A. Little leaguer's elbow, B. Tennis elbow, C. Golfers elbow, D. Frozen shoulder
B: Tennis elbow
Answer: B: Tennis elbow 
Explanation: ANSWER: (B) Tennis elbowREF: Apley's system 8th e p. 310-11Tennis tendinitis:Chronic tendinitis of common extensor originCozen test - active extension of wrist against resistance produces pain at point of common extensor origin.