Table 2. MED in Step 1 and irradiation doses in Step 2.

MED in Step 1	Irradiation dose in Step 2
No MED (No erythema with 500 mJ/cm2)	500 mJ/cm2
500 mJ/cm2	400 mJ/cm2
400 mJ/cm2	300 mJ/cm2
300 mJ/cm2	200 mJ/cm2
200 mJ/cm2	100 mJ/cm2
100 mJ/cm2	50 mJ/cm2
50 mJ/cm2	Step 2 will be cancelled

Abbreviation: MED, minimal erythema dose.