Assertion: placebo's symptom | /r/RelatedTo | obstructive airway disease
Facets:
Source sentences:
text: Two 4-week randomized, double-blind, placebo-controlled trials were conducted in 163 pediatric subjects aged from birth to 48 months with symptoms of bronchospasm associated with obstructive airway disease (presenting symptoms included: wheeze, cough, dyspnea, or chest tightness).