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Plasma concentration-time profiles of human parathyroid hormone (1-34) (PTH) following either application of microneedle arrays (MNs) or subcutaneous injection. Keys: (●) PTH-loaded MNs and (〇) subcutaneous injection of PTH. Results are expressed as the means ± standard deviation (SD) of three rats.
Source: Ref. [16] (CC BY 4.0).
