Table 1.

Sources of Keloid Fibroblasts and Normal Control Fibroblasts

Cell type	Sex	Age (years)	Biopsy site	Duration of keloid (years)
Keloid
K-1	F	18	Chest	14
NK-1	F	18	Normal skin around the keloid
K-2	F	73	Chest	6
K-3	F	46	Abdomen	15
Control
N-1	M	30	Back
N-2	M	50	Forearm
N-3	M	5	Foot*

F, female; M, male.

*Surplus skin of graft for syndactly was used in this subject.