Before revision:  We propose that these equations can be used to distinguish between citrate metabolism in healthy prostate tissue cells and in malignant cells, or they can be used to follow changes in citrate metabolism during the process towards malignancy .
After revision:  We propose use of these equations to distinguish between citrate metabolism in healthy prostate tissue cells and in malignant cells, or they can be used to follow changes in citrate metabolism during the process towards malignancy .