https://pubmed.ncbi.nlm.nih.gov/32186705/
Hospital care utilization during the last 6 months of life of patients with lung cancer shows regional medical practice variation over the course of multiple...
at the endregional variationin hospitalcarelife
https://www.usgs.gov/publications/regional-contamination-versus-regional-dietary-differences-understanding-geographic
The relative contribution of regional contamination versus dietary differences to geographic variation in polar bear (Ursus maritimus) contaminant levels is...
geographic variationregionalcontaminationversusdietary