TY - JOUR T1 - Whooping cough – still a challenge JO - Jornal de Pediatria T2 - AU - Korppi,Matti SN - 22555536 M3 - 10.1016/j.jpedp.2013.09.001 DO - 10.1016/j.jpedp.2013.09.001 UR - https://jped.elsevier.es/pt-whooping-cough-still-challenge-articulo-S2255553613001304 ER -