共 16 条
[13]
NORMAN RICHARD D., 1960, JOUR DENTAL RES, V39, P11, DOI 10.1177/00220345600390010301
[14]
PHILLIPS R W, 1957, J Am Dent Assoc, V54, P623
[15]
VOLKER J, 1944, TUFTS DENTAL OUTLOOK, V18
[16]
WINER BJ, 1962, STATISTICAL PRINCIPL, P77