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Specifically, in this article, clusters of groups with metric invariance (i.e., equal factor loadings) are obtained by making the loadings cluster-specific, whereas other parameters (i.e., intercepts, factor (co)variances, residual variances) are still allowed to differ between groups within a cluster. MMG-FA was found to perform well in an extensive simulation study, but a larger sample size within groups is required for recovering more subtle loading differences. Its empirical value is illustrated for data on the social value of emotion

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The patient recovered smoothly without any complication. When general anesthesia and emergency airway management are required in the patients with mental retardation and predicted difficult airways, a combination of the supraglottic airway and the flexible bronchoscope maybe a safe and useful choice for airway control. When general anesthesia and emergency airway management are required in the patients with mental retardation and predicted difficult airways, a combination of the supraglottic airway and the flexible bronchoscope maybe a saf