@Article{ MARTIN_ÁLVAREZ_Herranz-Tejedor:427-428,

author = { ANTONIO MARTIN ANDRES and MARÍA ÁLVAREZ HERNÁNDEZ and Inmaculada Herranz-Tejedor } ,

title = { Erratum },

journal = { Statistical Methods in Medical Research },

year = { 2012 },

volume = { 21 },

pages = { 427-428 },

}