Transition from a hunter-gatherer to a settled lifestyle in the !Kung San: effect on iron, folate, and vitamin B12 nutrition.
Am J Clin Nutr. 1984 Dec;40(6):1295-303. doi: 10.1093/ajcn/40.6.1295.
Am J Clin Nutr. 1984.
PMID: 6150635