TY  - RPRT
TI  - Spa therapy in Bulgaria.
AU  - N K Tsankov
AU  - J A Kamarashev
DO  - 10.1016/s0738-081x(96)00103-4
UR  - https://pubmed.ncbi.nlm.nih.gov/8960811/
ID  - 8960811
ER  -