Fluctuation of the number of CD-1(T6)-positive dendritic cells, presumably Langerhans cells, in the nasal mucosa of patients with an isolated grass-pollen allergy before, during, and after the grass-pollen season. - Fokkens,W.J.; Vroom,T.M.; Rijntjes,E.; Mulder,P.G. (J Allergy Clin Immunol, 1989)