Table 1. Distribution of the responding subject matter experts for each round of the modified Delphi process.

Table Credits: Scott Young, Gerrit Davis, and Kyle Couperus

Modified Delphi Iteration	Specialty	N (%)
Round 1	Emergency Medicine	12/21 (57.1%)
	General Surgery	4/21 (19.0%)
	Critical Care	4/21 (19.0%)
	Cardiothoracic Surgery	1/21 (4.8%)
Round 2	Emergency Medicine	11/20 (55.0%)
	General Surgery	7/20 (35.0%)
	Critical Care	1/20 (5.0%)
	Cardiothoracic Surgery	1/20 (5.0%)
Round 3	Emergency Medicine	8/14 (57.1%)
	General Surgery	3/14 (21.4%)
	Critical Care	1/14 (7.1%)
	Cardiothoracic Surgery	1/14 (7.1%)
	Vascular Surgery	1/14 (7.1%)
Round 4	Emergency Medicine	9/15 (60.0%)
	General Surgery	4/15 (26.6%)
	Critical Care	1/15 (6.7%)
	Cardiothoracic Surgery	1/15 (6.7%)