An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Szymczyk E, Lipiec P, Michalski B, Szymczyk K, Shim A, Woźniakowski B, Rotkiewicz A, Stefańczyk L, Kasprzak JD.Szymczyk E, et al. Among authors: szymczyk k.J Cardiovasc Med (Hagerstown). 2016 May;17(5):374-81. doi: 10.2459/JCM.0000000000000198.J Cardiovasc Med (Hagerstown). 2016.PMID: 25304033Clinical Trial.
Lipiec P, Wejner-Mik P, Wdowiak-Okrojek K, Szymczyk E, Skurski A, Napieralski A, Kamiński M, Szymczyk K, Kasprzak JD.Lipiec P, et al. Among authors: szymczyk k, szymczyk e.Cardiol J. 2016;23(3):264-9. doi: 10.5603/CJ.a2016.0015. Epub 2016 Apr 11.Cardiol J. 2016.PMID: 27064799Free article.