Steinemann and her team surveyed more than 1,100 American adults online using a national random sample representative of age, gender and region. (health.com)
It has been detected in most urine samples representative of the U.S. population. (sciencedaily.com)
Rob Bailey and Tatiana Gulko from OPP Ltd asked 1212 people from the UK and the Republic of Ireland — a gender - balanced sample representative of the workforce as a whole — to complete a range of measures examining their personalities, work outcomes and lifestyle choices. (sciencedaily.com)