Impedance plethysmography. It's the clinical outcome that counts.
Akers
S M
SM
Bartter
T
T
Pratter
M R
MR
D006801:Humans; D010992:Plethysmography, Impedance; D012680:Sensitivity and Specificity; D013924:Thrombophlebitis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography