Labor (3) Minors (3) Indexes (3) Families (3) Índices (3) Menores (3) Familias (3) Trabajo (3) Evolution (Biology) (2) Time (2) Public health (2) Physicians (2) Health facilities (2) Health (2) Expenditures, Public (2) Calculus (2) Salud (2) Estudio (2) Gasto público (2) Evolución (2) Salud pública (2) Servicios de salud (2) Médicos (2) Cálculo (2) Tiempo (2) distribution (2) Indirect taxation (1) Direct taxation (1) Taxation (1) Tax incidence (1)