Table 2 Examples of participant matching programs.

From: A comprehensive model for characterizing Chinese female facial skin laxity by expert assessment, consumer perception, and noninvasive skin physiological parameters

Pairs

L1

L2

L3

L4

M1

M1 & L1

M1 & L2

M1 & L3

M1 & L4

M2

M2 & L1

M2 & L2

M2 & L3

M2 & L4

M3

M3 & L1

M3 & L2

M3 & L3

M3 & L4

M4

M4 & L1

M4 & L2

M4 & L3

M4 & L4

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