“…What instrumental investigations should be used to detect the presence of dysphagia ? Statements are based on core literature consisting of Class I [ 5 , 98 ], II [ 62 ], III [ 23 , 55 , 61 , 74 , 75 ] and IV [ 20 , 31 , 56 – 59 , 63 – 69 , 73 , 76 , 77 , 80 , 82 – 84 , 99 – 105 ] level studies and expert opinion. - When the clinical evaluation suggests the presence of dysphagia, patients should undergo an instrumental investigation for the assessment of swallowing.…”