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These charts illustrate the mechanical performance of a standardized bronchoalveolar lavage (BAL) protocol. The mechanical parameters of a standardized BAL protocol were assessed based on the clinical records of 274 procedures with complete details. Extracted data included (A) the volume of saline instilled for each procedure and (B) the volume of effluent collected. These values were used to calculate (C) the ratio of volume recovered/instilled.
