| BT | Balneotherapy |
| ABT | Balneotherapy by ambulatory/outpatient mode |
| ABTNT | Balneotherapy combined with nature therapy in ambulatory/outpatient mode |
| BTS | Balneotherapy in stationary/inpatient mode |
| NT | Nature therapy |
| C | Control group |
| BT | Balneotherapy |
| ABT | Balneotherapy by ambulatory/outpatient mode |
| ABTNT | Balneotherapy combined with nature therapy in ambulatory/outpatient mode |
| BTS | Balneotherapy in stationary/inpatient mode |
| NT | Nature therapy |
| C | Control group |