Height and weight were measured using the standardized procedures.
Knee height was measured by a single trained observer using the standardized procedures as described by Zhang [ 6].
Nutrient and NHP intake data were collected using the standardized procedures of the British Columbia Nutrition Survey (BCNS) that included nutrient analysis of 3-day food records using ESHA software and the Canadian Nutrient File.
Using the standardized procedures of Goldman and Schmaltz [ 24], we conducted 11 focus group interviews among current hard-core smokers (n = 32) and former hard-core smokers (n = 31) in the Netherlands.
Elderly participants and the young reference population underwent whole body DXA scans to provide estimates of LTM and FM (Prodigy, Version 7.51; GE Lunar, Madison, WI and DPX-IQ, software version 4.7e; Lunar Radiation Corporation, Madison, WI, respectively) using the standardized procedures of the manufacturer.
E was calculated using the standardized equation and procedures proposed by the American Society of Civil Engineers from hourly data, and climate inputs from WRF and GridET were debiased relative to the same set of observations.
Four healthy control specimens have been obtained by another experienced periodontist (BE, see Acknowledgements) using the same standardized procedure in obtaining the biopsies and in processing the specimen.
In houses with water supply (n = 92), tap water samples of 10 mL were collected into polypropylene tubes (PerformR Centrifuge tubes, Labcon, Petaluma, CA) using the following standardized procedure (adapted from van der Hoven and Slaats): open the tap for three minutes, reduce flow, and collect sample.
We used the standardized examination procedures developed by The Nordic Cryptorchidism Study Group, and all examinations were performed by one pediatrician, who also examined most of the boys born in the Copenhagen area.
Both samples were recruited at the same time by the same field workers using the same standardized procedures.
