Many GFSE products have been found to be adulterated with the preservative benzethonium chloride, an antibacterial agent. Lab studies have indicated that the benefits related to GFSE have been due ...
An electronic search was conducted by consulting the following databases: PubMed (1966–2010), CINAHL (1982–2010), International Pharmaceutical Abstracts (IPA) database (1970–2010), and the ...