A double-blind, single-dose, crossover comparison of cetirizine, terfenadine, loratadine, astemizole, and chlorpheniramine versus placebo: suppressive effects on histamine-induced wheals and flares during 24 hours in normal subjects. - Simons,F.E.; McMillan,J.L.; Simons,K.J. (J Allergy Clin Immunol, 1990)