Sub-Dataset identification

Hello everyone,
is it possible to access the sub datasets used to create the challenges like SONIC, MSK-1 to MSK-5 and so on? I saw a paper releasing the composition using the ISIC archive gallery, but I can not figure out how to filter for subsets.
Levin Kobelke
Paper: Analysis of the ISIC image datasets: Usage, benchmarks and recommendations - ScienceDirect