Objective. In preterm infants, the rapid and accurate determination of the presence of a hemodynamically significant patent ductus arteriosus (PDA) is extremely
Holocene palaeoweathering conditions and environmental changes of Loulan (楼兰) Stupa Sec-tion were reconstructed by major elements analysis results and optical
Early Paleozoic granodiorite has been identified on the northern margin of the North China craton in the east section of the central-Asian orogenic belt, which