Perlman C.M, Hirdes J.P, Barbaree H., Fries B.E, McKillop I., Morris J.N, Rabinowitz T..  2013.  Development of mental health quality indicators (MHQIs) for inpatient psychiatry based on the interRAI mental health assessment. Bmc Health Services Research. 13:15.

Morris J.N, Hawes C., Fries B.E, Phillips C.D, Mor V., Katz S., Murphy K., Drugovich M.L, Friedlob A.S.  1990.  Designing the national resident assessment instrument for nursing homes. Gerontologist. 30(3):293-307.

Hirth R.A, Banaszak-Holl J.C, Fries B.E, Turenne M.N.  2003.  Does Quality Influence Consumer Choice of Nursing Homes? Evidence from Nursing Home to Nursing Home Transfers Inquiry. 40(4):343-361.

Hawes C., Morris J.N, Phillips C.D, Fries B.E, Murphy K., Mor V..  1997.  Development of the nursing home Resident Assessment Instrument in the USA. Age & Ageing. 26(Suppl 2):19-25.

Reilly T.A, Marathe V.P, Fries B.E.  1978.  A delay-scheduling model for patients using a walk-in clinic. Journal of Medical Systems. 2(4):303-13.

Fries B.E, Marathe V.P.  1981.  Determination of optimal variable-sized multiple-block appointment systems. Operations Research. 29(2):324-45.