*Study Limitations*

Several study limitations are worth noting. The survey was administered to pharmacists in only four U.S. states. The response rate achieved was positive in light of evidence suggesting that surveys, particularly those executed through email, are otherwise quite low [49]. However, the response rate was low enough to preclude generalization of attitudes even to pharmacists in the four states comprising the sampling frame. The research involved the use of question items informed from previous research but without any sort of gold standard or an attempt to create an overall composite measure or index; thus, there was no basis by which to discern the construct or content validity of the measures used.
