1889-836X 1889-836X S1889-836X2017000400001 10.4321/s1889-836x2017000400001 España España 00 12 2017 00 12 2017 9 4 105 106 1 2017 13 4 4 208-19 2 2015 62 5 5 e47-56 3 2017 9 4 4 107-13 4 2017 64 Suppl 1 Suppl 1 1-6