V. Beyel

Polypharmacy in psychiatry: a multi-state comparison of psychotropic drug combinations.

C. Sheppard, J. Fracchia, S. Merlis, 1974, Diseases of the nervous system.

Polypharmacy in psychiatry: empiricism, efficacy, and rationale.

C. Sheppard, J. Fracchia, S. Merlis, 1972, Current psychiatric therapies.

Comparative Survey of Psychiatrists' Prescription Preferences

C. Sheppard, J. Fracchia, S. Merlis, 1975 .

Comparative survey of psychiatrists' treatment preferences: California and New York.

C. Sheppard, J. Fracchia, S. Merlis, 1974, Comprehensive psychiatry.