P4426Evaluation of serum level changes of syndecan-1 in response to orthostatic stress during head-up tilt test in patients with vasovagal syncope. (28th August 2018) - Pietrucha, A Z; Wojcik, T; Jedrzejczyk-Spaho, J; Bzukala, I; Wnuk, M; Pietrucha, B J; Werynski, P; Konduracka, E; Chlopicki, S; Nessler, J