id	keyword
flr-137	stress
flr-137	classroom
flr-137	students
flr-137	learning
flr-137	et al
flr-137	self
flr-137	demands
flr-137	experience
flr-137	cortisol
flr-137	model
flr-137	effects
flr-137	context
flr-137	concept
flr-137	doi
flr-137	analysis
flr-137	research
flr-137	coping
flr-137	level