R. Johnson
发表
R. Udin,
A. Fei,
R. Johnson,
1991,
Pediatric dentistry.
R. Johnson,
1989,
Update in pediatric dentistry.
R. Johnson,
S. R. Aylard,
1987,
Pediatric dentistry.
J M Steffen,
J B Miller,
R Johnson,
1971,
ASDC journal of dentistry for children.
R. Johnson,
T. Croll,
1982,
ASDC journal of dentistry for children.
R. Johnson,
F. McIntyre,
R. A. Bochiechio,
1993,
The Journal of prosthetic dentistry.
R. Johnson,
S. White,
P. S. Suh,
1997,
Operative dentistry.
R. Johnson,
T. Croll,
1980,
Pediatric dentistry.