Carol Stephenson

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In 50 black children with 70 slipped capital femoral epiphyses, a satisfactory result was obtained in 87% of the hips. Chondrolysis developed in 6% of the hips, occurring only when there was persistent intraarticular protrusion of the transepiphyseal fixation device. The chondrolytic process resulted in a relatively painless fibrous ankylosis of each hip.(More)
Concentrations of amino-terminal pro-B-type natriuretic peptides (NT-proBNP) are often markedly elevated immediately after birth and typically decrease to normal concentrations after the first week of life. Despite these early life elevations (which likely reflect activity of the natriuretic peptide system to assist in mobilization of fluid in the neonatal(More)
BACKGROUND Multiple sclerosis (MS), a progressive demyelinating disease of the brain and spinal cord, is the leading cause of nontraumatic neurological damage in young adults. Canada has one of the highest reported incidents of MS, with estimates between 55 and 240 per 100,000 individuals. Between 2009 and 2014, the MS Society of Canada provided over Can(More)
Atypical cytogenetic abnormalities were detected in peripheral primitive neuroectodermal tumors (PPNET) of the extremity in two children. One had an osseous tumor with a balanced reciprocal translocation, t(5;9)(q22;q32), and had a complete response to therapy. The other had a non-osseous tumor with an interstitial deletion, del(18)(q12.2q21.2), was(More)
The mandate of ASA Working Group S12/WG11 has been to develop "laboratory and/or field procedure(s) that yield useful estimates of field performance" of hearing protection devices (HPDs). A real-ear attenuation at threshold procedure was selected, devised, tested for one earmuff and three earplugs via an interlaboratory study involving five laboratories and(More)
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