Dr. Lucy Yardley, corresponding author for the paper on vestibular rehabilitation, has posted comments directly addressing my critiques.
Dr. Robert Belshe, corresponding author of the first of the two NEJM articles on intradermal flu vaccination, emailed several corrections to statements I had made. These are important points.
Dr. Mathew Hotopf, corresponding author of the article on medical decision making competence, posted a detailed reply that greatly clarifies points that I had raised.