Tissues recovery of phLAL. A, LAL activity in tissue extracts of liver, spleen, and kidney from lal−/−;MMR−/− mice that received 48 U or 72 U of phLAL and were harvested 4 h after injection. B, LAL activity recovery in liver, spleen, and kidney as a percentage of total injected LAL activity in lal−/−;MMR−/− mice.