We used the standard and validated Pittsburgh Sleep Quality Index (PSQI), which was developed by researchers at the University of Pittsburgh in 1988 AD. The questionnaire included baseline variables l
Full edition for scientific use. The survey in fall 2021 aimed at collecting representative data of Austrian schools. A stratified sampling approach was used. Parents were asked...
Introduction: Irritable bowel syndrome (IBS) is a repeated, expensive, and disabling functional digestive disorder. Stress can play a role in its occurrence hence, nowadays many researches are conduct
