@ARTICLE{Walocha_Jerzy_A._Ossification_2013, author={Walocha, Jerzy A. and Skrzat, Janusz and Kłosiński, Michał and Tomaszewski, Krzysztof A. and Wróbel, Andrzej and Piech, Krzysztof and Kłosiński, Piotr}, number={No 4}, journal={Folia Medica Cracoviensia}, howpublished={online}, year={2013}, publisher={Oddział PAN w Krakowie; Uniwersytet Jagielloński – Collegium Medicum}, title={Ossification of the ligamentum flavum of the lumbosacral spine in the polish hospitalized population — a prospective cohort study}, URL={http://www.czasopisma.pan.pl/Content/87628/mainfile.pdf}, }