Observational (n=33)
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A group of 162 infants (aged 4-14 months) with obstetric brachial palsy (OBP) and a group of 184 child and adult patients (aged 6-74 years) with a traumatic brachial plexus lesion were compared, using an EMG and nerve-conduction-study protocol, developed since 1985 at the Department of Clinical Neurophysiology, Atrium Medisch Centrum, Heerlen, The Netherlands.
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J Gordon Millichap (2000) conducted an observational in Obstetric brachial palsy and traumatic brachial plexus lesion (n=33). Obstetric brachial palsy in infants vs. Traumatic brachial plexus lesion in adults was evaluated on Denervation and motor unit recruitment in biceps brachii and deltoid muscles.
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