To achieve {HEAD ~ the small particle size}, the drug may be dissolved in an organic solvent, such as dimethyl sulfoxide or ethanol, together with a gelling agent or thickener according to {TAIL ~ the invention} 
To achieve { HEAD ~ the small particle size } , the drug may be dissolved in an organic solvent , such as dimethyl sulfoxide or ethanol , together with a gelling agent or thickener according to { TAIL ~ the invention }
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