" A small industry of researchers in recent years have focused their attention on Native American population size in 1492, and the subsequent decimation
this disorder and no conclusive method for diagnosis." ^ a b "Adrenal Fatigue: Is It Real?". WebMD. Metcalf, Eric. 2017年10月2日時点のオリジナルよりアーカイブ。2014年3月19日閲覧。