CSR

CSR may refer to:

==Biology and chemistry== Central serous retinopathy, a visual impairment Cheyne–Stokes respiration, an abnormal respiration pattern Child sex ratio, ratio between female and male births Class switch recombination, a process that changes the constant region of an immunoglobulin Clinical study report, on a clinical trial Combat stress reaction, a condition also known as shell shock or battle fatigue C-S-R Triangle theory, an application of the universal adaptive strategy theory to plant biology in which strategies are competitor, stress tolerator, and ruderal Chemical shift reagent, for improved chemical shift dispersion in NMR spectroscopy