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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
SDS-PAGE analysis to assess the effect of hyaluronic acid. (M) Marker, 1 NP10 (0.25% HA) stored at 36 °C, 2 NP9 (0.125% HA) stored at 36 °C. T0 (freshly prepared); (T1 (40 days); T2 (60 days); T3 (90 days).