REVISTA CHILENA DE ENFERMEDADES RESPIRATORIAS

149 contenTS Rev Chil Enferm Respir 2018; 34: 149 EDITORIAL Clocks, Clocks, Clocks and Daylight-Saving Time. Do our internal clocks match the external clock time? María J. Serón Ferré ..................................................................................................................... 151 Changes in body mass index in sleep apnea patients with a year of continuous positive airway pressure treatment (CPAP). Luz María Trujillo, Constanza Salas, Astrid Von Oetinger, Rodrigo Torres Castro and Kabir P. Sadarangani .................................................................................................................... 153 Incremental shuttle walking test: In healthy children. Daniel Ciudad, Patricia Díaz, José Orellana and Catalina Soto ................................................. 160 Impact of tuberculosis in Puerto Montt hospital, Chile. Javier Riquelme, Julio Morales, Rodrigo Aguilera, Mauricio Espinoza, Alexis Vidal and Raúl Riquelme ............................................................................................................................... 165 documents Spirometry Procedure Manual. SER Chile 2018. Mónica Gutiérrez, Teresa Beroiza, Gisella Borzone, Iván Caviedes, Juan Céspedes, Mónica Gutiérrez, Manuel Oyarzún, Silvia Palacios, Claudia Cartagena, Raúl Corrales, Cecilia Álvarez and Patricia Schonffeldt . ........................... 171 nota radiológica Pediatric clinical-radiological case. Hernán García, José I. Cancino, Alejando Bustos and Cristián García ...................................... 189 CHRONICLE - Luis Astorga .................................................................................................... 192 Requirement’s guideline for manuscripts submitted to this journal ...................................... 196 Publishing guidelines for authors ............................................................................................... 198