Table 1. Symptom assessment form.

Grades	Symptoms
0	No symptoms
1	Occasional symptoms (less than 3 times per week), and relieved after rest.
2-4	Falls between 1-5, assessment based on individual conditions.
5	Recurrent symptoms, affecting quality of life and work, and not relieved easily with rest.
6-8	Falls between 5-9, assessment based on individual conditions.
9	Ongoing symptoms seriously affecting quality of life and work, and not ameliorated with rest.