Ethical approval and governance. The trial (ISRCTN62811278) was
approved by the ethics committees of BYL Nair and TN Medical
College, Grant Medical College, and Sir JJ Group of Hospitals, Mumbai,
and Southampton and SW local research ethics committees. An
independent data monitoring committee reviewed data on compliance,
completeness of follow-up, pregnancy outcomes, and adverse events
every 6 mo for the first 3 y of the trial and then every year.