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Exposure levels of HA in the heart, spleen, liver, kidney, bladder, and trachea based on molecular weight with 7 and 29 kDa HA on top, 67 and 215 kDa HA in the middle, and 741 kDa HA on the bottom as a percentage of delivered dose over time for each of the five HA molecular weights. Each point is an average of at least five animals with the error on each point <5% of the measurement.
