E-drug: Sampling drugstores (cont)
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Hi Arturo,
Will you ask only for digoxin sales? Or will you interview each patient
who buy digoxin? My doubts arise because I'm convinced that not all
digoxin users will have the diagnose of heart failure, and the
proportion of users of digoxin for heart failure may differ from a
cluster of drugstores to another, depending, for example, on the
presence of a hospital or a specialized centre in the neighbourhood.
Albert Figueras
Fundacio ICF
Universitat Autonoma de Barcelona
afs@icf.uab.es
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