@incollection{Krogh11, author = {Klaus Krogh}, title = {Gastrointestinal Dysfunction in Parkinson’s Disease}, booktitle = {Symptoms of Parkinson's Disease}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Abdul Qayyum Rana}, chapter = {10}, doi = {10.5772/17606}, url = {https://doi.org/10.5772/17606} }