Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Xiaoli Wu and Chunshui Yu and Fengmei Fan and Kaiyuan Zhang and Chaozhe Zhu and Tao Wu and Kuncheng Li and Piu Chan,Correlation between Progressive Changes in Piriform Cortex and Olfactory Performance in Early Parkinson’s Disease,European Neurology,0014-3022,S. Karger AG,2011,66,2,98-105,https://cir.nii.ac.jp/crid/1361699995922850944,https://doi.org/10.1159/000329371