Today's topics: what is the safest oral anticoagulant (https://www.ncbi.nlm.nih.gov/pubmed/30512099), new diabetes guidelines (https://www.ncbi.nlm.nih.gov/pubmed/30291106), and the good and the ouch of the new zoster vaccines (https://www.ncbi.nlm.nih.gov/pubmed/30361202).