Offers the protection and impact resistance that meets ANSI Z87.1 basic impact standards. O Matter frames are formulated for high durability and high flexibility for improved safety during impact. Maintains resistance to ultra violet radiation, humidity, thermal shock, and chemical exposure. In all cases two individuals assessed the studies and extracted data, with discrepancies resolved by joint review and consensus. Optimal analysis of cluster randomised studies involves adjustment that relies on the correlation within clusters. We could access these correlations…