Rare diseases (1) Certification (1) Research (1) Public health records (1) Methodology (1) Measurement (1) Information storage and retrieval systems (1) Hospitals--Admission and discharge (1) Health (1) Fountains (1) Experience (1) Epidemiology (1) Diseases (1) Communities (1) Hospitales--Admisión y alta (1) Enfermedades raras (1) Estudios (1) Salud (1) Sistemas de información (1) Certificación (1) RED (1) Fuentes (1) Estudio (1) Registros médicos (1) Morbilidad (1) Datos (1) Información (1) Experiencia (1) Comunidad (1) Investigación (1)