Adherence of umbilical cord and adult peripheral blood PMN to human small airways epithelial cells incubated with thrombin (1IU/ml, 10 mins), MAFP (5 μM, 10 mins) followed by thrombin (1IU/ml, 10 mins) or phorbol 12-myristate 13-acetate (PMA, 100nM, 10 mins). **p<0.01 when compared to control. No statistical difference was detected between umbilical cord and adult peripheral blood under each experimental condition. Data shown are mean + SEM for 4 separate isolations