Letter to the Editor regarding “Effectiveness of preoperative breathing exercise interventions in patients undergoing cardiac surgery: a systematic review” Margarida Rodrigues, Inês Machado Vaz

Effectiveness of preoperative breathing exercise interventions in patients undergoing cardiac surgery: A systematic review Soraia Nicola Rodrigues, Helga Rafael Henriques, Maria Adriana Henriques

Response – Letter to the Editor regarding prevalence of hypertension in Portuguese adolescents Doroteia Silva, Maria-Helena Almeida