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The population characteristics of the linear envelopes of the electromyograms measured from seven lower extremity muscles in children were studied during locomotion. The variability and changes in pattern with respect to walking speed and age were investigated using statistical properties and analysis of variance of the envelopes. All muscles studied showed(More)
We chemically synthesized 20 peptides corresponding to 75% of the HA1 molecule of the influenza virus. Antibodies to the majority (18) of these peptides were capable of reacting with the hemagglutinin molecule. These 18 peptides are not confined to the known antigenic determinants of the hemagglutinin molecule, but rather are scattered throughout its(More)
Two hundred and forty-five knee dislocations were analyzed including forty-one new cases. The high incidence of injuries to the popliteal artery that accompanies this lesion (32 per cent) was confirmed, and it was re-emphasized that vascular repair must be completed within six or at the most eight hours from the time of injury to avoid amputation. Of the(More)
It is possible to regulate the activity of human influenza virus specific helper T-cell clones either by high concentrations of antigen or by anti-idiotypic suppressor T cells. In the absence of accessory cells, the appropriate peptide antigen recognized by the clones induces specific unresponsiveness. This phenomenon, however, is not the result of(More)
A 40-year experience consisting of 91 cases of acute slipped capital femoral epiphysis (SCFE) was reviewed to assess the safety of manipulative reduction and to determine whether urgent reduction has an effect on the development of avascular necrosis (AVN) of the capital femoral epiphysis. All patients had a history of sudden onset of severe hip pain and(More)
Twenty-six skeletally immature patients with 27 displaced, diaphyseal forearm fractures treated by open reduction and internal fixation were reviewed. The mean age of the patients at the time of injury was 11.5 years (range, 4-15). Indications for surgery included open fractures (10), unacceptable closed reduction (14), and loss of reduction (three).(More)
A 7 1/2-month-old boy had an anterior inferior dislocation of the shoulder. Dislocations of the shoulder in infants have previously been reported, and were either congenital dislocations with associated anomalies of the glenohumeral joint with dislocations from Erb's palsy or septic arthritis. In the present case, dislocation of the shoulder was associated(More)