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The effects of NH3 formed by urea hydrolysis on K distribution in maize roots and the rhizosphere were examined by electron probe x-ray microanalysis. Fresh weight of seedlings growing on calcareous soils was decreased by applying 200 ppm N as urea attributable to the inhibition of the development of root hairs and lateral roots. In the U-200 treatment,(More)
BACKGROUND Injury is an important cause of childhood mortality in China. We described the epidemiology and trends of injury-related deaths of children <5 years of age in Hunan province, and discussed several policy implications. METHODS Injury-related deaths of children <5 years of age in 2009-2014 were identified from surveillance data. All specific(More)
Langerhans cell histiocytosis (LCH) is an infrequent disorder complex. It is a disease of myeloid dendritic cells, lymphocytes, and macrophages mixed with eosinophils and neutrophils [1]. The accumulation of these cells causes the classic lytic bone lesions, skin rashes, lymphadenopathy, and organ dysfunction. Langerhaus cell histocytosis occurs at all ages(More)
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