Department of Clinical Surgery;
Universidade Estadual de Londrina;
Londrina;
Brazil;
Medical School;
Pontifícia Universidade Católica do Paraná;
Londrina;
Brazil;
GEM;
Center of Excellence in Research;
Teaching and Health Care;
Londrina;
Brazil;
Department of Clinical and Toxicological Analysis;
Universidade Estadual de Londrina;
Londrina;
Brazil;
FORMALDEHYDE; Olfaction Disorders; Occupational Medicine; TOXICOLOGY;