Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effect of SNP in the absence (a) and presence of rolipram (10 μM) (b), SK&F 94120 (100 μM) (c), rolipram (100 μM) (d) and SK&F 94120 (10 μM) and rolipram (10 μM in combination (e) on contractile responses evoked by histamine in guinea-pig trachea. Data represent the mean±s.e.mean of 5–8 determinations. See legend to Figure 1 and Methods for further details.
