@book{9184,
	author = {N. W. Johnson (editor)},
	title = {Risk markers for oral diseases },
	publisher = {Cambridge University Press},
	year = {1991},
	address = {Sydney},
	note = {Includes index.
Vol.1: Dental caries markers of high and low risk groups
Vol.2: Oral cancer detection of patients and lesions at risk
Vol.3: Periodontal diseases markers of disease susceptibility and acitivity}
}