[1] Maastricht Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, Maastricht, Netherlands
[2] Autonomous Univ Barcelona, Hosp Mataro, Dept Surg, Gastrointestinal Physiol Lab, Carretera Cirera S-N, Mataro 08304, Spain
[3] Inst Salud Carlos III, CIBERehd, Barcelona, Spain
[4] Univ Antwerp, Univ Antwerp Hosp, Born Bunge Inst, Dept Neurol, Edegem, Belgium
[5] Skane Univ Hosp, Dept Translat Med, Div Med Radiol, Malmo, Sweden
[6] Clin Bois Bougy, Nyon, Switzerland
[7] Bonifatius Hosp, Dept Geriatr & Phys Med, Lingen, Germany
[8] Long Term Care & Hospice, Ettelbruck, Luxembourg
[9] Univ Padua, Dept Neurosci, Rehabil Unit, Padua, Italy
[10] Hosp Ramon & Cajal, Dept Geriatr Med, Madrid, Spain
[11] Princess Royal Univ Hosp, Kings Coll Hosp Fdn Trust, Clin Gerontol, London, England
[12] James Cook Univ, Coll Healthcare Sci, Townsville, Qld, Australia
[13] Trinity Coll Dublin, Dept Clin Speech & Language Studies, Dublin, Ireland