Nevertheless, epidemiological studies on the relations between cardiovascular health and siesta have led to conflicting conclusions, possibly because of poor control of moderator variables, such as physical activity.
en.wikipedia.org Presently, causative diagnosis is dependent upon laboratory testing, however these methods are more practical in epidemiological studies than in patient diagnosis.
en.wikipedia.org Epidemiological studies that might confirm or rule out any connection between these complaints and fracking are virtually non-existent.
en.wikipedia.org Academics were encouraging use of epidemiological methods in health care management for quality improvement and planning before the term managerial epidemiology was coined.
en.wikipedia.org Nevertheless, epidemiological studies on the relations between cardiovascular health and siestas have led to conflicting conclusions, possibly because of poor control of moderator variables, such as physical activity.
en.wikipedia.org