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c-fos mRNA. (Top) The c-fos mRNA was determined as a function of time after addition of 100 nM (d-Phe6, β-Ala11, Phe13, Nle14)bombesin-(6–14) to NCI-H1299#5 cells. (Bottom) Ethidium bromide staining. This experiment is representative of three others.
