@article {Rui_Amaral_Mendes9655365,
	title = {An overview on the expression of cyclooxygenase-2 in tumors of the head and neck},
	journal = {Oral Oncology},
	year = {2009},
	doi = {10.1016/j.oraloncology.2009.03.016},
	url = {http://doi.org/10.1016/j.oraloncology.2009.03.016},
	author = {Rui Amaral Mendes and J. F. Carvalho and I. van der Waal}
}
