[Cost effectiveness of influenza vaccination in children under 2 years old and elderly in Colombia].
Porras-Ramírez
Alexandra
A
Universidad de Antioquia, Medellín, Colombia. agudeloandres:@odontologia.udea.edu.co
Alvis-Guzmán
Nelson
N
Rico-Mendoza
Alejandro
A
Alvis-Estrada
Luís
L
Castañeda-Orjuela
Carlos A
CA
Velandia-González
Martha P
MP
de la Hoz-Restrepo
Fernando
F