A randomized study of three interventions for aspiration of thin liquids in patients with dementia or Parkinson’s disease - Logemann, JA; Gensler, G; Robbins, J; Lindblad, AS; Brandt, D; Hind, JA; Kosek, S; Dikeman, K; Kazandjian, M; Gramigna, GD; Lundy, D; McGarvey-Toler, S; Miller, PJ Gardner (J Speech Lang Hear Res, 2008)