https://www.selleckchem.com/products/nx-5948.html
The pharmaceutical industry spends billions of dollars every year for marketing its products to US health care providers. This study investigates the association between industry marketing payments and physicians' prescription in New York and Massachusetts, and examines the effect of the Massachusetts payment restriction policy on this association in comparison with the New York State that has no payment restriction policy. Three panel data models (fixed effects regression (FE), first difference regression (FD), and first difference wit
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