J Keesey

Explaining variations in hospital death rates. Randomness, severity of illness, quality of care.

R H Brook, J Kosecoff, E. Keeler, 1990, JAMA.

Does inappropriate use explain geographic variations in the use of health care services? A study of three procedures.

R H Brook, J Kosecoff, K. Kahn, 1987, JAMA.

Variations in the use of medical and surgical services by the Medicare population.

R H Brook, J Kosecoff, K. Kahn, 1986, The New England journal of medicine.