

14th Place, 1981
Per H. Kjeldsen
University of Michigan
School of Dentistry
Ann Arbor, Michigan, USA
Ascorbic Acid - slow melt (40x)
Polarized light - Learn more


Per H. Kjeldsen
University of Michigan
School of Dentistry
Ann Arbor, Michigan, USA
Ascorbic Acid - slow melt (40x)
Polarized light - Learn more