The current measured by Kaali and Lymann was the real amount flowing through the blood. Either outside the body (transfusion) or inside, where they put electrodes into the arteries (invasive technique).
Do not confuse it with the current applied to the outside of the skin when using Beck devices. Dr. Beck found out, that if you aplly electrodes to the wrist, there will be losses in the skin, different layers of tissue and walls of the vessel and finally the current reaching the blood will be some 60-80x weaker than total.
This why Beck says in his papers, that in order to achieve 50-100uA inside the blood, one needs to apply about 3mA to the skin.
If you limit your device to 130uA it will deliver only some 2uA to the blood. This is a mistake.