Representativeness of the participants in the smoking Cessation in Pregnancy Incentives Trial (CPIT): a cross-sectional study

The limited representativeness of trial samples may restrict external validity. The aim of this study was to ascertain the representativeness of the population enrolled in the Cessation in Pregnancy Incentives...

from #MedicinebyAlexandrosSfakianakis via xlomafota13 on Inoreader http://ift.tt/2bqnyb3
via IFTTT