50. CONCLUSIONS : Montelukast did not improve the clinical course in acute bronchiolitis . No significant effect of montelukast on the T - helper 2 / T - helper 1 cytokine ratio when given in the early acute phase could be demonstrated .
51. Bronchiolitis: Recent Evidence on Diagnosis and Management Joseph J. Zorc and Caroline Breese Hall Pediatrics 2010;125;342-349; originally published online Jan 25, 2010; DOI: 10.1542/peds.2009-2092