All respondents per indicator.

Abbreviations: ACS = Acute Coronary Syndrome; COPD = Chronic Obstructive Pulmonary Disease; EEG = Electroencephalography; ERC = Endoscopic Retrograde Cholangiography; N = No; NS = No Statement; PEG = Percutaneous Endoscopic Gastrostomy; PTA = Percutaneous Transluminal Angioplasty; Sens = Sensitive; Spec = Specific; U = Uncertain; Y = Yes. a: Answer options range from 1 (= disagree completely) to 9 (= agree completely) or NS (= I cannot make a statement). b: Due to confidentiality, answers are not shown when the number of respondents was n = 2. (XLSX)