S. Helm
发表
S. Helm,
1973,
Community dentistry and oral epidemiology.
B. Solow,
S. Helm,
1968,
Acta odontologica Scandinavica.
S. Kreiborg,
B. Solow,
S. Helm,
1985,
American journal of orthodontics.
S. Helm,
U. Prydsö,
1979,
Scandinavian journal of dental research.
P. Petersen,
S. Helm,
1989,
Acta odontologica Scandinavica.
S. Helm,
B. Seidler,
1974,
Community dentistry and oral epidemiology.
P. Petersen,
S. Helm,
Poul Erik Petersen,
1989,
Acta odontologica Scandinavica.
S. Kreiborg,
B. Solow,
S. Helm,
1984,
American journal of orthodontics.
P. Petersen,
S. Helm,
1989,
Acta odontologica Scandinavica.
B. Solow,
T. J. Freer,
S. Helm,
1979,
Bulletin of the World Health Organization.
S. Helm,
T. Helm,
1990,
Scandinavian journal of dental research.
S. Helm,
1968,
American journal of orthodontics.
S. Kreiborg,
S. Helm,
J. Perregaard,
1975,
Community dentistry and oral epidemiology.
S. Helm,
P. Boesen,
J. Eriksen,
1976,
Community dentistry and oral epidemiology.
S. Helm,
1969,
Archives of oral biology.
S. Helm,
1973,
Community dentistry and oral epidemiology.
S. Kreiborg,
P. Petersen,
B. Solow,
1986,
Community dentistry and oral epidemiology.
S. Helm,
S Helm,
1979,
American journal of physical anthropology.
S. Helm,
1990,
Scandinavian journal of dental research.
S. Helm,
1977,
Acta odontologica Scandinavica.
S. Helm,
U. Prydsö,
1979,
Scandinavian journal of dental research.
S. Helm,
1970,
Acta Odontologica Scandinavica.
P. Petersen,
S. Helm,
1989,
Acta odontologica Scandinavica.
S. Helm,
T. Helm,
1990,
Community dentistry and oral epidemiology.
S. Kreiborg,
B. Solow,
S. Helm,
1983,
Community dentistry and oral epidemiology.