Erratum to: “Study of the decay ϕ → π + π − π 0 with the KLOE detector” [Phys. Lett. B 561 (2003) 55]

Erratum to: “Study of the decay ϕ → π + π − π 0 with the KLOE detector” [Phys. Lett. B 561 (2003) 55]