Impact of biannual azithromycin on weight-for-age z-score among infants in the AVENIR cluster-randomised trial. - Peterson B; Arzika A; Maliki R; Abdou A; Aichatou B; Bello IM; Beidi D; Galo N; Harouna N; Karamba AM; Mahamadou S; Abarchi M; et al. (BMJ paediatrics open, 2025)