function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akazaki, M.', 1],
    ['Bariche, Michel & Fricke, Ronald', 4],
    ['Blache, J. & Cadenat, J. & Stauch, A.', 1],
    ['Bleeker, Pieter', 11],
    ['Borsa, P. & Béarez, P. & Chen, Wei-jen', 1],
    ['Borsa, P. & Béarez, P. & Paijo, S. & Chen, Wei-jen', 2],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 5],
    ['Chen, Wei-Jen & Miki, Ryohei & Borsa, P.', 1],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 4],
    ['Gilchrist, J. D. F.', 1],
    ['Gilchrist, J. D. F. & Thompson, W. Wardlaw', 2],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['Iwatsuki, Yukio & Newman, Stephen J. & Russell, Barry C.', 2],
    ['Klunzinger, C. B.', 1],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 4],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=52)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);