Menezes, AGuimarães, JMoreira, FPereira, SBreda, MDias, L2017-02-172017-02-172016ERS 2016 – European Rhinologic Society Annual Congress – Stockholm, Sweden, from 3-7 July, 2016http://hdl.handle.net/10400.23/1149engLitíaseObstrução NasalDoenças NasaisRhinolithiasis-an unsual cause for a common symptomconference object