Real-world long-term multicentric study of primary and secondary failure to biologicals in severe asthma D Dacal Rivas; E Martinez-Moragón; V Plaza; C Cisneros Serrano; C Benchimol; H Izaguirre Flores; S Sánchez-Cuéllar; MD Martínez-Pitarch; C Fernández Aracil; A Trisán Alonso; JC Serrano Rebollo; Z Vásquez Gambasica; RM Díaz Campos; P Trujillo Mulato; I Escribano Gimeno; D Laorden; E Arismendi; N Marina Malanda; A De Diego Damia; M Ferrer Galvan; I Dávila; J Ortiz de Saracho Bobo; BG Cosio; LA Pérez de Llano;