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Table 15 Frequency Distribution of PHT Dosage by Hair Color

From: The concentration of three anti-seizure medications in hair: the effects of hair color, controlling for dose and age

PHT

Hair Color

Dose

    
 

Black

Brown

Blond

Gray

(mg/day)

    

100

4

2

2

6

200

4

6

4

2

300

12

4

2

2

400

4

6

0

0

Total

24

18

8

10