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Outdoor Learning Environment (OLE!) Texas A statewide initiative, sponsored by the Health and Human Services Department that promotes healthful, nature-based outdoor spaces at early childcare and education (ECE) programs

When the tissue heals, the pain resolves permanently

Repeated freeze-thaw cycles should be avoided

To be handled only by qualified professionals in controlled laboratory settings

MATERIALS AND METHODS: In cell experiments, human dermal fibroblasts were treated by a series of GHK-Cu and HA combinations, and the expressions of collagen I, IV, and VII were measured by qRT-PCR

thus, these differences in measurement methods may not be significant to this study