I broke down the shader and composed all the layers in Photoshop, so the weight values shown here are not important.
To break down the shader, I duplicated the original, made one for each layer and changed the values of the weights for each. For example, for the diffuse pass, the weight of diffuse is 1 and epidermal, subdermal, specular, etc is 0. I only changed the weight values; all the other values were the same for all.
I used Final Gather and I made this layer (Fig.16).