#To avoid collinearity, subjects with missing region, all taking surgical procedures, were randomly assigned to other region groupings.
Thirty young male Wistar rats weighing 200 g at the beginning of the procedures were randomly distributed into two groups: control (n = 10) and experimental (n = 20).
Those who agreed to participate and provide verbal informed consent detailing study procedures were randomly assigned into a text4baby exposure or control group based on a randomly generated list of the treatment and control conditions.
University undergraduates taking part in a cold pressor procedure were randomly assigned to one of two conditions: (1) participant alone (n=30), or (2) observer present (n=34).
Six native tibiae (contralateral side, no procedure) were randomly chosen to serve as a control group.
In summary, patients over 40 years old with recently symptomatic moderate or severe carotid stenosis (≥50% reduction of the lumen diameter), who were considered equally suitable for either procedure, were randomly allocated to undergo treatment by stenting or endarterectomy.
Such enrichment would also apply to sequencing of ChIP samples derived by either cross-linking followed by sonication, or by native ChIP using micrococcal nuclease digestion, as both procedures are unlikely to fragment the genome randomly prior to chromatin immunoprecipitation.
The selection of families was based on two complementary procedures: parents were randomly selected on the basis of a population list (meeting our inclusion criteria: age of the child and survey area) and contacted by post, or they were solicited while attending a children's public preventive care centre.
For the main validation procedure, children were randomly selected (one child in four in each cluster) from a national representative sample of New Caledonian schoolchildren.
After providing informed written consent and completing the screening procedure, students were randomly assigned to groups starting the educational intervention in either September or February.
