Do family doctors of the Lisbon and Tagus Valley, Alentejo and Algarve health regions get immunized against seasonal flu? Why or why not?. Rev Port Med Geral Fam [Internet]. 2010 Mar. 1 [cited 2026 Apr. 18];26(2):140-8. Available from: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10726