Katon WJ, Walker EA. The relationship of chronic fatigue to psychiatric illness in community, primary care and tertiary care samples. Ciba Found Symp. 1993;173:193-204; discussion 204-11. Review.
Katon WJ, Walker EA. The relationship of chronic fatigue to psychiatric illness in community, primary care and tertiary care samples. Ciba Found Symp. 1993;173:193-204; discussion 204-11. Review.