1. Impact factor 0.562 - the ultimate goal or the next step forward?;Morais;Rev Port Pneumol.,2013
2. Impact factor 0.85 - the ultimate goal or the next step forward? (II);Morais;Rev Port Pneumol.,2014
3. Impact factor 1.16 - the big challenge and the great opportunity;Morais;Rev Port Pneumol.,2015
4. Impact Factor 1.35 Once again; what should and could we do about it?;Morais;Rev Port Pneumol.,2016
5. Are we ready to get in the eye of the storm?;Morais;Rev Port Pneumol.,2017