Table 1.

Subject sample characteristics.

Characteristic	Percentage (frequency), unless otherwise noted
Gender
Male	57.1 (8/14)
Female	42.9 (6/14)
Ethnicity
Caucasian	57.1 (8/14)
East Asian	28.6 (4/14)
Indian	14.3 (2/14)
Mean age, range	30 y, 20 to 54 y