Scientific papers

You can also access my papers via ResearchGate  RG

Olthof-Nefkens MWLJ, Kruse H, Derksen E, de Swart BJM, Nijhuis-van der Sanden MWG, Kalf JG. Improving Communication between Persons with Mild Dementia and Their Caregivers: Qualitative Analysis of a Practice-Based Logopaedic Intervention.Folia Phoniatrica et Logopaedica. 2018;70(3-4):124-133. 

Presotto M, Kalf JG, Olchik MR, Rieder CRM. Translation, linguistic and cultural adaptation, reliability and validity of the Radboud Oral Motor Inventory for Parkinson's Disease - ROMP questionnaire. Arquivos de Neuro-psiquiatria, 2018 May;76(5):316-323.

Knuijt S, Kalf JG, van Engelen BGM, de Swart BJM, Geurts ACH. The Radboud Dysarthria Assessment: development and clinimetric evaluation. Folia Phoniatrica et Logopaedica. 2017; 69(4): 143-153.

Knuijt S, Kalf J, van Engelen B, Geurts A, de Swart B. Reference values of maximum performance tests of speech production. International Journal of Speech-Language Pathology, 2017 Sep 26:1-9.

Hoesseini A, Honings J, Taus-Mohamedradje R, van de Hoogen FJ, Marres HA, van den Broek GB, Kalf H, Takes RP. Outcomes of endoscopic cricopharyngeal myotomy with CO2 laser surgery: A retrospective study of 47 patients. Head & Neck, 2016, 38(7), 1022-7. [Epub].

Weikamp JG, Schinagl DA, Verstappen CC, Schelhaas HJ, de Swart BJ, Kalf JG. Botulinum toxin-A injections vs radiotherapy for drooling in ALS. Acta Neurol Scand, 2016 Jan 25 Epub

Berg van den M, Kalf JG, Hendriks JC, Takes RP, van Herpen CM, Wanten GJ, Drenth JP, Kaanders JH, Merkx MA. Normalcy of food intake in head and neck cancer patients supported by combined dietary counseling and swallowing therapy: a randomized clinical trial. Head & Neck, 2014, Dec 22 Epub

Kalf JG, de Wit S. Orofaryngeale slikstoornissen bij neurodegeneratieve aandoeningen. Tijdschrift voor Gerontologie en Geriatrie, 2014 Oct;45(5):273-81.[Epub]

Kalf JG. Orofaryngeale slikstoornissen bij de ziekte van Parkinson. Tijdschrift voor Gerontologie en Geriatrie, 2014 Oct;45(5):282-9. [Epub]

Knuijt S, Kalf JG, de Swart BJ, Drost G, Hendricks HT, Geurts AC, van Engelen BG Dysarthria and dysphagia are highly prevalent among various types of neuromuscular diseases. Disability and Rehabilitation2013, Oct 23 [Epub]

Kalf JG. Management of dysphagia and drooling in patients with Parkinson’s disease. Neurodegenerative Disease Management2013; 3 (1): 71-79.

Kalf JG, de Swart BJ, Munneke M, Bloem BR. Author reply to "Oropharyngeal dysphagia in Parkinson's disease: comments on paper by Kalf et al." by Boot & Chaudhuri. Parkinsonism and Related Disorders 2013 ; 19(2): 276.

Kalf JG, de Swart BJ, Bloem BR, Munneke M. Prevalence of oropharyngeal dysphagia in Parkinson's disease: a meta-analysis.  Parkinsonism Relat Disord 2012;18a(4): 311-5.

Kalf JG, Bloem BR, Munneke M. Diurnal and nocturnal drooling in Parkinson's disease. Journal of Neurology 2012;259(1): 119-23.

Kalf JG, Borm GF, Swart de BJM, Bloem BR, Zwarts MJ, Munneke M. Reproducibility and validity of patients-rated assessment of speech, swallowing and saliva control in Parkinson's disease. Archives of Physical Medicine and Rehabilitation2011; 92(7): 1152-1158.

Kalf JG, Munneke M, Engel-van den Hoek L, de Swart BJ, Borm GF, Bloem BR et al. Pathophysiology of diurnal drooling in Parkinson's disease. Movement Disorders2011; 26(9):1670-6.

Marck van der MA, Kalf JG, Sturkenboom IH, Nijkrake MJ, Munneke M, Bloem BR. Multidisciplinary care for patients with Parkinson's disease. Parkinsonism Relat Disord2009;15 Suppl 3:S219-23.

Bloem BR, Kalf JG, van de Kerkhof PC, Zwarts MJ. Debilitating consequences of drooling. Journal of Neurology2009; 256(8): 1382-3.

Kalf JG, de Swart BJ, Borm GF, Bloem BR, Munneke M. Prevalence and definition of drooling in Parkinson's disease: a systematic review. Journal of Neurology2009; 256(9): 1391-6.

Kaalf JG, Swart de BJ, Ensink RJH, Bloem BR. Dysphagia in Parkinson's disease. B-ENT 2008; 4 (Suppl. 10): 57-59.

Nijkrake MJ, Keus SH, Kalf JG, Sturkenboom IH, Munneke M, Kappelle AC, Bloem BR. Allied health care interventions and complementary therapies in Parkinson's disease. Parkinsonism Relat Disord2007; 13 Suppl 3: S488-S494.

Kalf JG, Smit AM, Bloem BR, Zwarts MJ, Munneke M. Impact of drooling in Parkinson's Disease. Journal of Neurology2007, 9, 1227-1232.

Kalf JG, Smit AM, Bloem BR, Zwarts MJ, Mulleners WM, Munneke M. Botulinum toxin A for drooling in Parkinson's disease: a pilot study to compare submandibular to parotid gland injections. Parkinsonism Relat Disord2007; 13:532-4.

Wohlgemuth M, de Swart BJ, Kalf JG, Joosten FB, Van der Vliet AM, Padberg GW. Dysphagia in facioscapulohumeral muscular dystrophy. Neurology2006; 66(12): 1926-1928.

De Swart BJ, Van der Sluijs BM, Vos AM, Kalf JG, Knuijt S, Cruysberg JRM, Van Engelen BG. Ptosis aggravates dysphagia in oculopharyngeal muscular dystrophy. J Neurol Neurosurg Psychiatry2006; 77: 266-268.

Kalf JG. A comment on "Aspiration risk after stroke: comparison of clinical examination and fiberoptic endoscopic evaluation of swallowing" (Dysphagia 17:214-218, 2002). Dysphagia 2003; 18(4):305-6; author reply 306.

Kalf H. Evidence-based speech and language therapy: do we use the evidence? J of Clinical Speech & Language Studies, 2003, 12/13, 108-117.

Coppenolle, L.van, Kalf, H., Kuipers, H. & Schade, M. (1993). Principles of behaviour change applied to communication disorders. In: Leahy, M.M. & Kallen, J.L. (eds.) Interdisciplinairy perspectives in speech and language pathology. Dublin: Trinity College.