| http://www.w3.org/ns/prov#value | - Classes of pharmaceutically active substances that come into consideration are, for example, nicotine and salts and derivatives thereof, e.g. nicotine tartrate or nicotine polacrilex (=resin complex containing nicotine, e.g. 10 or 20 weight-% of nicotine), in particular nicotine tartrate; hormones, e.g. melatonin; fluoride supplements, e.g. sodium fluoride or others fluoride salts; local disinfect
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