M. Helpin
发表
T. Croll,
M. Helpin,
2002,
Pediatric dentistry.
W. K. Duncan,
M. Helpin,
1987,
Oral surgery, oral medicine, and oral pathology.
S. O. Krolls,
M. Helpin,
N. Krejmas,
1986,
Oral surgery, oral medicine, and oral pathology.
K. Donly,
T. Croll,
M. Helpin,
2000,
ASDC journal of dentistry for children.
T. Croll,
M. Helpin,
1995,
ASDC journal of dentistry for children.
T. Croll,
M. Helpin,
1994,
ASDC journal of dentistry for children.
T. Croll,
M. Helpin,
C. M. Killian,
1993,
ASDC journal of dentistry for children.
T. Croll,
M. Helpin,
2000,
Journal of esthetic dentistry.
K. Donly,
T. Croll,
M. Helpin,
2004,
Pediatric dentistry.
T. Croll,
M. Helpin,
1996,
Quintessence international.
M. Helpin,
1983,
ASDC journal of dentistry for children.
David M. Rocke,
M. Zasloff,
F. Kaplan,
1996,
Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.
M. Helpin,
P. Schneider,
P. Ross,
2013,
Pediatric dentistry.
M. Helpin,
J. E. Fleming,
1982,
Pediatric dentistry.
F. Morrison,
M. Helpin,
1981,
Pediatric dentistry.
W. K. Duncan,
M. Helpin,
1986,
ASDC journal of dentistry for children.
M. Helpin,
H. Rosenberg,
A. Cucchiara,
1998,
Social science & medicine.
R. Sanford,
M. Helpin,
H. Rosenberg,
1998,
ASDC journal of dentistry for children.