Stefan Hammes
Kenneth A. Arndt
Robert M. Pick
G. David Baxter
Ashley J. Welch
K Karsch
Victor G. Lacombe
Michael W. Berns
Michael Marberger
International Congress of Laser in Dentistry (1988 Tokyo, Japan)
International Conference on Photodynamic Therapy and Medical Laser Applications (1992 Milan, Italy)
Markolf H. Niemz