CINAHL Ebsco
	Search date: 24 February 2022
1	TI (gastric N2 residual*) OR AB (gastric N2 residual*)	469
2	TI aspirate* OR AB aspirate*	4,306
3	S1 OR S2 [GASTRIC RESIDUAL]	4,730
4	(MH "Infant, Newborn+") OR (MH "Infant, Large for Gestational Age") OR (MH "Infant, Low Birth Weight+") OR (MH "Infant, Postmature") OR (MH "Infant, Premature")	152,930
5	(MH "Intensive Care, Neonatal+") OR (MH "Intensive Care Units, Neonatal")	19,595
6	TI (baby* or babies or infant? or infantile or infancy or low birth weight or low birthweight or neonat* or neo‐nat* or newborn* or new born? or newly born or premature or pre‐mature or pre‐matures or prematures or prematurity or pre‐maturity or preterm or preterms or pre term? or preemie or preemies or premies or premie or VLBW or LBW or ELBW or NICU) OR AB (baby* or babies or infant? or infantile or infancy or low birth weight or low birthweight or neonat* or neo‐nat* or newborn* or new born? or newly born or premature or pre‐mature or pre‐matures or prematures or prematurity or pre‐maturity or preterm or preterms or pre term? or preemie or preemies or premies or premie or VLBW or LBW or ELBW or NICU)	243,954
7	S4 OR S5 OR S6 [NEONATAL TERMS]	303,027
8	(MH "Single‐Blind Studies") OR (MH "Triple‐Blind Studies") OR (MH "Randomized Controlled Trials+") OR (MH "Double‐Blind Studies")	166,873
9	(MH "Clinical Trials+")	334,894
10	TI (randomized or randomised) OR AB (randomized or randomised) OR SU (randomized or randomised)	318,334
11	AB randomly	102,088
12	AB placebo	63,583
13	AB (trial)	319,953
14	AB groups	848,082
15	TI (quasirandom* or quasi‐random*) OR AB (quasirandom* or quasi‐random*)	2,167
16	S8 OR S9 OR S10 OR S11 OR S12 OR S13 OR S14 OR S15	1,245,004
17	(MH "Animal Studies")	145,125
18	(MH "Human")	2,521,187
19	S17 NOT S18	120,959
20	S16 NOT S19 [RCT FILTER]	1,206,982
21	(MH "Systematic Review")	107,301
22	(MH "Meta Analysis")	60,739
23	( TI ((systematic* N3 (review* or overview*)) or (methodologic* N3 (review* or overview*))) ) OR ( AB ((systematic* N3 (review* or overview*)) or (methodologic* N3 (review* or overview*))) )	130,603
24	( TI ((integrative N3 (review* or overview*)) or (collaborative N3 (review* or overview*)) or (pool* N3 analy*)) ) OR ( AB ((integrative N3 (review* or overview*)) or (collaborative N3 (review* or overview*)) or (pool* N3 analy*)) )	17,559
25	( TI (data synthes* or data extraction* or data abstraction*) ) OR ( AB (data synthes* or data extraction* or data abstraction*) )	13,086
26	AB (hand search* or handsearch*)	4,762
27	AB (mantel haenszel or peto or der simonian or dersimonian or fixed effect* or latin square*)	9,055
28	( TI met analy* or metanaly* or meta regression* or metaregression*) ) OR ( AB met analy* or metanaly* or meta regression* or metaregression*) )	4,520
29	AB (medline or cochrane or pubmed or medlars or embase OR CINAHL)	109,882
30	S21 OR S22 OR S23 OR S24 OR S25 OR S26 OR S27 OR S28 OR S29 [SYSTEMATIC REVIEW FILTER]	233,105
31	S3 AND S7 AND S16 [RCT Results]	221
32	S3 AND S7 AND S30 [SR Results]	17
33	S31 OR S32 [CINAHL All results]	227