Status fungsional, rasio limfosit monosit dan rasio trombosit limfosit sebagai faktor prognosis kesintasan 1 tahun pasien lanjut usia dengan kanker paru karsinoma bukan sel kecil stadium IIIB-IV = Functional status, lymphocyte to monocyte ratio and platelet to lymphocyte ratio as a prognostic factor of 1-year survival in elderly with Non-small cell lung stage IIIB-IV