@incollection{Xia11,
author = {Ruiping Xia},
title = {Physiological and Biomechanical Analyses of Rigidity in Parkinson's Disease},
booktitle = {Etiology and Pathophysiology of Parkinson's Disease},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Abdul Qayyum Rana},
chapter = {22},
doi = {10.5772/17849},
url = {https://doi.org/10.5772/17849}
}