function output = getSlicerLandmarks(obj, filename)
  loadedLandmarks = jsondecode(fileread(filename)).markups.controlPoints;

  validWordsInLabels = ["subscapularis", "supraspinatus", "infraspinatus",...
    "teres", "minor", "intratubercular"];
  landmarks = [];
  for i = 1:length(loadedLandmarks)
    correctedLabel = correctSpelling(...
      tokenizedDocument(replace(loadedLandmarks(i).label, "_", " ")),...
      "KnownWords", validWordsInLabels);
    landmarks.(join(correctedLabel.string, "_")) = loadedLandmarks(i).position;
  end

  output = landmarks;
end