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An analysis of surface cultures of 35 preterm infants of less than 33 weeks gestational age hospitalized in a neonatal intensive care unit was made. The babies had received neither antiseptic nor antibiotic therapy prior to collection of specimens. Surface cultures were collected on the 4th or 5th day of life from 16 skin or mucosal sites. At the onset of a… (More)
BACKGROUND The genome of retroviruses, including HIV-1, is packaged as two homologous (+) strand RNA molecules, noncovalently associated close to their 5'-end in a region called dimer linkage structure (DLS). Retroviral HIV-1 genomic RNAs dimerize through complex interactions between dimerization initiation sites (DIS) within the (5'-UTR). Dimer formation… (More)
Histological appearances of the tissue fragments obtained by cavitron ultrasonic surgical aspirator (CUSA) were studied in 25 cases to determine whether the aspirated tissue could be used for diagnosis. It was found that a definite diagnosis could be made on the tissue removed by this method.