Normal view
MARC view
Ellen, Richard P., 1946- (Personal Name)
Periodontal care for older adults, c1992: t.p. (Richard P. Ellen) Canadian CIP, etc. (hdg: Ellen, Richard P., 1946- ; prof. of dentistry and microbiology; head, Dept. of Periodontics, Fac. of Dentistry, Univ. of Toronto)