BACKGROUND: Cystic fibrosis is an inherited life-limiting disorder, characterised by pulmonary infections and thick airway secretions. Chest physiotherapy has been integral to clinical management in facilitating removal of airway secretions. Conventional chest physiotherapy techniques (CCPT) have depended …

Sufficient conditions for mean square convergence of factor predictors in common factor analysis are given by Guttman, by Williams, and by Schneeweiss and Mathes. These conditions do not hold for confirmatory factor analysis or when an error variance equals zero (Heywood cases). Two sufficient conditions …

Objectives Among the treatment alternatives for adolescent idiopathic scoliosis (AIS) in Norway, only bracing and surgery are mentioned as generally accepted forms of treatment. There exists a lot of controversy on this issue; therefore a descriptive research is used to highlight the different aspects …