Correspondence to M. Kaszkin, Pharmacentrum Frankfurt, Keinikum der J. W. Goethe-Universität Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany kaszkin@em.uni-frankfurt.de)
As a certification company, CL enables companies of all sizes to have their products tested for potential inclusion in its list of Approved Quality products and bear the CL Seal. CL has tested more than 1,800 products, representing over 350 different bran