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. Value propositions among community-dwelling older adults may influence their satisfaction with telehealth services postimplementation. More research is needed to examine the clinical efficacy and cost-effectiveness of these services.The presence of nanoconcentrations of persistent pharmaceuticals in treated wastewater effluent and in surface water has been frequently reported. A novel organic-inorganic hybrid sorbent based on adsorbing quarternized poly vinylpyridinium-co-styrene (QPVPcS) to montmorillonite (MMT) was designed for the