Breakthrough Pain

• Complexo Hospitalario Universitario de Santiago — Santiago de Compostela, A Coruña, Spain
• Hospital Principe de Asturias — Alcalá de Henares, Madrid, Spain
• Hospital Universitari Son Espases — Palma de Mallorca, Palma, Spain
• Hospital Universitario Central de Asturias — Oviedo, Principality of Asturias, Spain

• Service ORL - CHU NANCY — Nancy, France

• Hospital de Mollet — Mollet del Vallès, Barcelona, Spain
• Hospital Sant Joan de Deu — Palma, Illes Baleares, Spain
• Hospital Clínic — Barcelona, Spain
• Hospital Virgen de las Nieves — Granada, Spain

• Complejo Hospitalario Universitario de Santiago — Santiago de Compostela, A Coruña, Spain
• Hospital de Terrassa — Terrassa, Barcelona, Spain
• Hospital Puerta de Hierro — Majadahonda, Madrid, Spain
• Hospital Do Meixoeiro — Vigo, Pontevedra, Spain

Not specified

• Duke University — Durham, North Carolina, United States

• Tokyo, Japan

• San Marco hospice — Latina, Italy

• Alejandro de la Torre. Hospital Puerta de Hierro — Majadahonda, Madrid, Spain

• Children's Hospital of Arkansas — Little Rock, Arkansas, United States
• UCLA Pediatric Pain Program — Los Angeles, California, United States
• Childrens Hospital of Orange — Orange, California, United States
• Lucille Packard Childrens Hospital — Palo Alto, California, United States