“…While nineteen studies were classified as having a low risk of bias [8,[19][20][21][22][23][24][25]27,28,31,33,36,37,40,41,45,47,48], nineteen studies were categorised as having a variable risk of bias for random sequence generation and allocation concealment. [26,29,30,32,34,35,38,39,[42][43][44]46,[49][50][51][52][53][54][55] None of the RCTs had blinded the intervention to the care providers due to the nature of the intervention. Ten trials had blinded the assessment of NEC.…”