.Publisheru00e2 $ s note Springer Attribute remains neutral when it come to administrative insurance claims in published charts and also institutional affiliations.This is actually a review of: Hanson, C. et al. A time-stratified, caseu00e2 $ "crossover study of warmth exposure as well as perinatal mortality from 16 medical centers in sub-Saharan Africa. Nat. Med. https://doi.org/10.1038/s41591-024-03245-7 (2024 ).