Health (4) Salud (4) Costes (3) régression (3) Asthma (2) Estudios (2) Estudio (2) Asma (2) Canada (1) Data envelopment analysis (1) Primary health care (1) Labor (1) Evolution (Biology) (1) Weights and measures (1) Valuation (1) Time (1) Thrombosis (1) Therapeutics (1) Technology (1) Rum (1) Respiratory organs (1) Research (1) Reformation (1) Quality of products (1) Public utilities (1) Production (Economic theory) (1) Population (1) Perspective (1) Multivariate analysis (1) Months (1)