Characteristics and outcomes of lung cancer patients requiring ventilatory support: results from a multinational study. Issue 1 (December 2015) - Toffart, AC; Timsit, JF; Salluh, J; Burghi, G; Irrazabal, C; Pattison, N; Tobar, E; Almeida, B; Azoulay, E; Soares, M