Figure 1.
Consort flowchart of enrolment, exclusion, randomisation and follow up of patients. Patients were not recruited because they were overseas tourists or travelling or planning to move within the next twelve weeks.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.