Analgesia function and anti-inflammation function

liver function and kidney function

Liver function renal function

step function and hurdle function

90% duration of action potential

Accumulated duration of sunshine

action duration

action potential duration

action potential duration alternans

action potential duration restitution

Active duration

activity duration

activity duration elasticity

Activity Duration Estimating

actuation duration

adjustable duration timer

afterglow duration

after-glow duration

aggregated duration

agricultural utilization duration