BackgroundThe aim was to analyse trends in clinically relevant resistance to first-line antiretroviral drugs in Spain. applying the Stanford algorithm. and to compare these results with reported Transmitted Drug Resistance (TDR) defined by the 2009 update of the WHO SDRM list. MethodsWe analysed 2781 sequences from ARV naive patients of the CoRIS cohort (Spain) between 2007-2011. https://parisnaturalfoodes.shop/product-category/l-arginine-500mg/