These are models built with earlier versions of Comsol. If you are using earlier version Comsol, you can start modeling immediately. You may be to import them into your newer Comsol and run them. I also provided the expected theoretical and phantom simulations results for your comparisons. Please note that these are reported results, and cite these papers as appropriate:
Rex Cheung (2019). Matlab for Femlab models (https://www.mathworks.com/matlabcentral/fileexchange/36556-matlab-for-femlab-models), MATLAB Central File Exchange. Retrieved .