Aleksander Prejbisz, specialist of internal diseases and hypertension, associate professor at the Department of Hypertension, National Institute of Cardiology in Warsaw. Prof. Aleksander Prejbisz specializes in diagnosis and treatment of difficult to treat, resistant hypertension and secondary hypertension. Prof. Aleksander Prejbisz is president-elect of the Polish Society of Hypertension. In addition, prof.. Aleksander Prejbisz is the author or co-author of original, review and case-report papers, in such journals as: Lancet Diabetes and Endocrinology, Hypertension, Kidney International, Journal of Clinical Endocrinology Metabolism, American Journal of Hypertension, European Journal of Endocrinology and others. He participates actively in many national and international scientific conferences.