Quantification and cellular localization of dopamine in the salivary gland of the ixodid tick Amblyomma hebraeum - W. Reuben Kaufman; B. Duff Sloley; Roger J. Tatchell; Geoff L. Zbitnew; Thomas J. Diefenbach; Jeffrey I. Goldberg (Experimental and Applied Acarology, 1999)