“…In brief, certain factors are consistently associated with survival in mesothelioma, i.e. sex, age, epithelioid differentiation, PS and tumour stage [117,157,[164][165][166][167][168][169][170][172][173][174][175][176][177][178][179][180][181]. However, for other factors, including presenting symptoms or quantification of asbestos exposure, the relationship with survival is less clear [163,165,168,173,[182][183][184].…”