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OBJECTIVE This study examined the usage patterns of dietary supplements during pregnancy, providing information about type of supplements used, prevalence of use, and rationale for use. STUDY DESIGN A survey was distributed to pregnant patients who were touring the University of California, San Francisco birthing center or who were receiving care at the(More)
In this talk we will introduce wiki surveys, a new form of social data collection that attempts to combine the quantifiability of traditional surveys with the openness of interviews. Drawing on principles underlying successful information aggregation and collective intelligence projects (e.g., Wikipedia), we propose three general criteria that wiki surveys(More)
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