Bell, Robert M. (Robert Michael), 1951-,

Management and evaluation of the effects of misclassification in a controlled clinical trial / Robert M. Bell and Stephen P. Klein - 13 pages ; 28 cm. - The Rand paper series; P-7001 . - The Rand paper series; P-7001 .

Includes bibliographical references: page 13


Dental surveys.
Dental caries--Research.