Abstract
We thank Solla et al. [ [1] P. Solla, C. Masala, I. Pinna , C. Frau , T. Ercoli , G. Defazio, Olfactory Hallucinations in Parkinson's Disease Patients and the Role of Their Evaluation in Clinical Practice, Parkinsonism Relat Disord, (submitted). Google Scholar ] for their interest in our study. We agree with them that more publications are needed as only a few studies have evaluated the prevalence of OH in PD [ 2 Mehanna R. Chandra S. Furr-Stimming E. Schiess M. Olfactory hallucinations as a non-motor sign of Parkinson's disease - a cross sectional study amongst patients in a tertiary movement disorder center. Park. Relat. Disord. 2022; 99: 30-32 Abstract Full Text Full Text PDF PubMed Scopus (0) Google Scholar , 3 McAuley J.H. Gregory S. Prevalence of clinical course of olfactory hallucination in idiopathic Parkinson's disease. J. Parkinsons Dis. 2012; 2: 199-205 Crossref PubMed Scopus (14) Google Scholar , 4 Mack J. Rabins P. Anderson K. Goldstein S. Grill S. Hirsch E.S. Lehmann S. Little J.T. Margolis R.L. Palanci J. et al. Prevalence of psychotic symptoms in a community-based Parkinson Disease sample. Am. J. Geriatr. Psychiatr. 2012; 20: 123-132 Abstract Full Text Full Text PDF PubMed Scopus (86) Google Scholar , 5 Bannier S. Berdagué J.L. Rieu I. de Chazeron I. Marques A. Derost P. Ulla M. Llorca P.M. Durif F. Prevalence and phenomenology of olfactory hallucinations in Parkinson's disease. J. Neurol. Neurosurg. Psychiatry. 2012; 83: 1019-1021 Crossref PubMed Scopus (23) Google Scholar , 6 Solla P. Masala C. Pinna I. Ercoli T. Loy F. Orofino G. Fadda L. Defazio G. Frequency and determinants of olfactory hallucinations in Parkinson's disease patients. Brain Sci. 2021; 11: 841 Crossref PubMed Scopus (15) Google Scholar ], and even fewer have described these qualitatively [ [2] Mehanna R. Chandra S. Furr-Stimming E. Schiess M. Olfactory hallucinations as a non-motor sign of Parkinson's disease - a cross sectional study amongst patients in a tertiary movement disorder center. Park. Relat. Disord. 2022; 99: 30-32 Abstract Full Text Full Text PDF PubMed Scopus (0) Google Scholar , [6] Solla P. Masala C. Pinna I. Ercoli T. Loy F. Orofino G. Fadda L. Defazio G. Frequency and determinants of olfactory hallucinations in Parkinson's disease patients. Brain Sci. 2021; 11: 841 Crossref PubMed Scopus (15) Google Scholar ].
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