What are the biggest spa resorts and balneology centers?
7: The biggest ones are: – Hissarya – successful treatment of urological and liver diseases – Sandanski – beneficial to the treatment of bronchial asthma – Velingrad – for non-specific conditions of the respiratory tract, disturbances of the locomotory system, neurological disorders, gynaecological complaints, mild forms of diabetes, obesity – Kystendil – for conditions of the bones, joints and tendons, disorders of the nervous system, cardiovascular diseases, disturbances of the reproductive system and sterility
