{
  "abstract": "We read with interest Erdem et al’s1 study on the effect of erector spinae plane (ESP) block on postoperative nausea in lumbar discectomy. The authors are to be commended for emphasizing nausea—an often neglected, yet meaningful patient-centered outcome. However, we believe that several methodological and conceptual issues might limit the interpretability and external validity of this study.",
  "authors": [
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA",
        "Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA"
      ],
      "name": "Periklis Giannakis"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA",
        "Icahn School of Medicine at Mount Sinai, New York, New York, USA"
      ],
      "name": "Renee Ren"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA",
        "Department of Anesthesiology, Weill Cornell Medicine, New York, New York, USA"
      ],
      "name": "Stavros G Memtsoudis"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA",
        "Institute for Healthcare Delivery Science, Icahn School of Medicine at Mount Sinai, New York, New York, USA"
      ],
      "name": "Jashvant Poeran"
    }
  ],
  "title": "Block, pain, and nausea: a causal triangle or just a coincidence?",
  "uid": "2bb42f14-b377-5c8c-9ef9-241e743f14da"
}