title: Positional factors in venous impedance plethysmography.
mesh_terms: D000328:Adult; D000368:Aged; D003951:Diagnostic Errors; D004566:Electrodes; D005069:Evaluation Studies as Topic; D006801:Humans; D007866:Leg / Q000098:blood supply*; D008722:Methods; D008875:Middle Aged; D010690:Phlebography; D010992:Plethysmography, Impedance; D011187:Posture; D013924:Thrombophlebitis / Q000175:diagnosis*