Concrete in Cleaning Supplies construction has recently gained media coverage for its negative CO2 footprint, but this is not the only problem associated with its use.Due to its chemical composition, freshly poured concrete changes the pH of water coming in contact with the surface to very alkaline values, requiring neutralization treatment before
Experience in prenatal ultrasound diagnosis of fetal microtia and associated abnormalities
ObjectivePrenatal ultrasound features, associated anomalies and genetic abnormalities of microtia cases were analyzed to explore the feasibility and value of prenatal ultrasound for the diagnosis of microtia.MethodsThe ultrasonographic features, associated anomalies, chromosome examination results and follow-up results of 81 fetuses with congenital