| http://www.w3.org/ns/prov#value | - Vital signs, including heart rate, EKG, respiration rate, end tidal CO2 and blood oxygen saturation (maintained above 95%) were continuously monitored during the study.Magnetic resonance imaging (MRI) Structural brain images were acquired on a 3.0 Tesla Siemens Magnetom Allegra MRI (Siemens Medical Solutions, Inc., Malvern, PA, U.S.A.).
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