Fig. 1From: High lithium concentration at delivery is a potential risk factor for adverse outcomes in breastfed infants: a retrospective cohort studyA flow chart of the study participants and exposure groups. 1 Heinonen et al. 2022. Lithium use during breastfeeding was safe in healthy full-term infants under strict monitoring (Heinonen et al. 2022). 2 Infant serum lithium concentration was measured in cord blood in all but three infants, for whom the lithium concentration measured at two days of age was used insteadBack to article page