A well - designed text is not only a marker of professionalism, it influences the way that your readers enjoy the book. (positivewriter.com)
However, it does not exclude that tHcy is only a marker for low - normal levels of the vitamins, which are themselves the causal factors. (journals.plos.org)
To prove that there is indeed a «vast left wing conspiracy» with President Obama at the controls, hurling us toward some dark world full of wind turbines and solar panels, Beck takes to a dry / erase board armed with only a marker and his intellect. (treehugger.com)