@misc{misc65d4d50e,
title   = {Carbon dioxide laser or cold scalpel on the removal of gingival melanin pigmentation: comparative study},
author = {Kogler, V. L. and Maio, M. and Zezzel, D. M. and Lage Marques, José Luiz Silva},
year = {2004},
booktitle   = {The International Congress on Laser in Dentistry}
}