Based on the process variants provided, some of the main differences between the treatment of the 'protected' group and the 'unprotected' group are:

1. Frequency of processes: The 'protected' group has a higher frequency of processes such as Expert Examination, Thorough Examination, and Expert diagnosis compared to the 'unprotected' group. This indicates that the 'protected' group may receive more specialized and thorough medical attention compared to the 'unprotected' group.

2. Use of specific treatments: The 'protected' group has a higher frequency of receiving Treatment successful compared to the 'unprotected' group. This suggests that the treatments provided to the 'protected' group are more effective and successful in curing the medical condition.

3. Discharge process: The 'protected' group has a higher frequency of successful discharge compared to the 'unprotected' group. This indicates that the 'protected' group may have better overall health outcomes and a lower likelihood of readmission or further complications after treatment.

4. Longer process execution times: The 'unprotected' group has longer process execution times for certain process variants compared to the 'protected' group. This could indicate that the 'unprotected' group may experience delays in receiving treatment or may not receive prompt and efficient medical care.

In summary, the main differences between the treatment of the 'protected' group and the 'unprotected' group suggest that the 'protected' group may receive more specialized, effective, and efficient medical care compared to the 'unprotected' group. This could be attributed to factors such as access to healthcare resources, funding, and prioritization of certain patient groups in the healthcare system.