Environment and cancer; five-year survey of the relationship of environment to the type and frequency of cancer causing deaths in Catholic sisters in the United States. Principal investigators: James T. Nix [and] Con J. Fecher. Compiled and edited [by] Con J. Fecher.

by Fecher, Constantine John, 1897-
Published 1972

Life-style and demography of Catholic religious sisterhoods and health of other religious groups Con J. Fecher.

by Fecher, Constantine John, 1897-
Published 1975