I have published over 230 original scientific publications and book chapters. My paper in The Lancet in 2001, reporting a randomized trial that evaluated a new model of antenatal care was cited in the top 10 articles on early childhood development worldwide.

With colleagues, we were the first to identify and documented the effectiveness of calcium supplementation to prevent hypertensive diseases of pregnancy and preterm birth. I led, for the WHO the largest randomized controlled trial on the subject, published in 2006. In June 2013, The Lancet identified calcium supplementation to mothers as one of “ten proven nutrition-specific interventions” and recommended scaling it up to cover 90% of the pregnant population at risk.