Assaying (1) Diseases (1) Methodology (1) Piping (1) Symptoms (1) Regression analysis (1) Questionnaires (1) Proportion (1) Perception (1) Ombudspersons (1) Morale (1) Medical records (1) Mediation (1) Helplessness (Psychology) (1) Future life (1) Cardiology (1) Anxiety (1) Anxiety disorders (1) Language, style (1) Analysis (1) Influence (1) Literary style (1) Style (1) Ursa Minor (1) Mental health (1) Literary art (1) Tuberías--Diseño y construcción (1) Educación--Fines y objetivos (1) Indefensión aprendida (1) Análisis de regresión (1)