- Bronchial biopsy evidence for leukocyte infiltration and upregulation of leukocyte-endothelial cell adhesion molecules 6 hours after local allergen challenge of sensitized asthmatic airways. Montefort, S., Gratziou, C., Goulding, D., Polosa, R., Haskard, D.O., Howarth, P.H., Holgate, S.T., Carroll, M.P. J. Clin. Invest. (1994)