Instructions: Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
Input: Abstract: Patients with eyelid dermatitis were studied with patch tests and a clinical point method for the diagnosis of atopic skin disease. In 38 patients, contact allergy was found in 11. The dermatitis was an expression of atopic dermatitis in 15 patients. 
Question: Does the abstract contain any numerical data?
Output:
Yes