Spirometric and cardiopulmonary exercise functions of bulgarian and romany children in the years of socioeconomic transition

Turnovska, T., Marinov, B., Kostianev, S., & Mandadzhieva, S. (). Spirometric and cardiopulmonary exercise functions of bulgarian and romany children in the years of socioeconomic transition. Central europ. j. of occupat. medicine; Central europ. j. of occupat. medicine.