“…Observational studies describing laryngeal masks used with neonates to administer anesthesia, to facilitate endotracheal intubation, or to facilitate diagnostic bronchoscopy were assigned to level of evidence 7 (extrapolation) regardless of methodology. In total, our search identified 48 relevant studies, including one Cochrane systematic review [15], one small randomized controlled trial [16], two nonrandomized cohort studies [2,17], three large uncontrolled case series [18][19][20], three mechanical or animal models [21][22][23], and multiple smaller case series or individual case reports for neonatal resuscitation [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] and other nonresuscitation purposes [11,[42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57]…”