.Publisheru00e2 $ s note Springer Attribute continues to be neutral for administrative cases in published charts and institutional affiliations.This is actually a recap of: Hanson, C. et cetera. A time-stratified, caseu00e2 $ "crossover research study of warmth direct exposure and also perinatal mortality from 16 medical centers in sub-Saharan Africa. Nat. Med. https://doi.org/10.1038/s41591-024-03245-7 (2024 ).