Validating self-reported exclusive breastfeeding in Eswatini using stable isotope techniques. - Simelane, Kwanele Siyabonga; Mhlanga, Tholakele; Mkhaliphi, Nhlakanipho Sandziso; Zwane, Siniketiwe; Dlamini, Glorious; Gadaga, Henry; Mulol, Helen; Coutsoudis, Anna (PLoS ONE, 2026)