Table 2.

FOX test

Score	Criteria	Significance
1	All of the follicular units are extracted intact, least difficult harvesting (popping out of grafts)	Excellent. FOX positive
2	Significant loss of surrounding fat around lower part of follicle or < 20% of amputation	Good. FOX positive, but may be difficult in subsequent sessions due to scarring
3	Difficult emergent angle	Questionable; greater surgical skills, experience and orientation are needed. FOX neutral
4	Significant amount of surrounding fat avulsed and amputation of significant number of distal follicles	Poor. FOX negative
5	Significant damage to mostly all the grafts with upper portion of follicles avulsed from lower segment	Poor. FOX negative