PCOP-PCWP: Plasma Colloid Osmotic Oressure/Pulmonary Capillary Wedge Pressure Difference

What does PCOP-PCWP mean? The above is one of PCOP-PCWP meanings. It may have other definitions. Please refer to the end of this passage.

Definition in English: Plasma Colloid Osmotic Oressure/Pulmonary Capillary Wedge Pressure Difference