P3L1E1T1H4Y4S1M3O1G2R1A1P3H4
30 points
PLETHYSMOGRAPH is validvalid
an instrument for measuring change in body part size due to blood flow
an instrument for measuring change in body part size due to blood flow
an instrument for measuring change in body part size due to blood flow
an instrument for measuring change in body part size due to blood flow