Short terms variations of leukocyte and neutrophil microparticle in broncho-alveolar lavage. LeuMP, leukocyte microparticles; NeuMP, neutrophil microparticles; BAL, bronchoalveolar lavage. Empty circles represent survivors and full triangles represent the non survivors. The dotted line connects the median values of MP in survivors and the solid line connects the median values of MP in non survivors. P-values compare survivors vs non survivors and were calculated by Wilcoxon rank-sum test.