| 1 child$.mp. or child/(1500744) |
| 2 (paediatric$ or pediatr$).mp. (163973) |
| 3 infant/or infan$.mp. (864884) |
| 4 young$.mp. (304417) |
| 5 toddler.mp. (1117) |
| 6 bab$.mp. (54771) |
| 7 child,preschool/(625996) |
| 8 (preschool or pre-school).mp. (627837) |
| 9 adolesc$.mp. or adolescent/(1304128) |
| 10 teenage$.mp. (10507) |
| 11 youth$.mp. (21868) |
| 12 or/1–11 (2734500) |
| 13 (intensive care or critical care).mp. (90585) |
| 14 intensive care units, pediatric.mp. (2630) |
| 15 intensive care units, neonatal.mp. (6648) |
| 16 picu.mp. (929) |
| 17 p*ediatric intensive care.mp. (3149) |
| 18 “critically ill”.mp. (16329) |
| 19 ventilated.mp. (17171) |
| 20 ventilat$.mp. (106904) |
| 21 respiration, artificial.mp. (30372) |
| 22 positive pressure respiration.mp. (13060) |
| 23 intermittent positive pressure breathing.mp. (943) |
| 24 intermittent positive pressure ventilation.mp. (2397) |
| 25 (high frequency ventilation or high frequency oscillation).mp. (1912) |
| 26 high frequency positive pressure ventilation.mp. (127) |
| 27 (hfv or hfov).mp. (764) |
| 28 high frequency jet ventilation.mp. (1084) |
| 29 airway pressure release ventilation.mp. (78) |
| 30 aprv {No Related Terms} (56) |
| 31 continuous mandatory ventilation.mp. or continuous mandatory ventilation/(7) |
| 32 cmv.mp. (14725) |
| 33 intermittent mandatory ventilation.mp. (529) |
| 34 (synchron$ intermittent mandatory ventilation or simv).mp. (206) |
| 35 (pressure suppoprt ventilation or psv).mp. (1254) |
| 36 (extracorporeal membrane oxygenation or ecmo or oxygenation, extracorporeal membrane).mp. (4039) |
| 37 or/13–36 (223297) |
| 38 (intravenous or iv).mp. (467655) |
| 39 parenteral.mp. (63557) |
| 40 inject$.mp. (556405) |
| 41 infus$.mp. (224106) |
| 42 (infus$ or infusions, intravenous).mp. (224106) |
| 43 $venous.mp. (139547) |
| 44 or/38–43 (1144844) |
| 45 midazolam.mp. (7964) |
| 46 midazolam hydrochloride.mp. (64) |
| 47 midazolam maleate.mp. (26) |
| 48 (dormicum or flormidal or versed or hypnovel or dormonid).mp. (496) |
| 49 benzodiazepine.mp. or benzo$/(15817) |
| 50 or/45–49 (22992) |
| 51 (clonidine dihydrochloride or clonidine hydrochloride or clonidine monohydrobromide or clonidine monohydrochloride).mp. (200) |
| 52 (clofelin or clopheline or dixarit or gemiton or hemiton or catapres or catapres*an or clophazolin or colfenil or isoglaucon or klofelin or klonefil or m-5041t or st-155).mp. (464) |
| 53 (clonidine or clonidin$).mp. (15383) |
| 54 or/51–53 (15506) |
| 55 37 and 44 and 12 (8661) |
| 56 50 and 55 (288) |
| 57 53 and 55 (16) |
