function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arturo Acero P. & José J. Tavera & Rafael Anguila', 1],
    ['Ayres, W. O.', 1],
    ['Bariche, Michel & Fricke, Ronald', 3],
    ['Bleeker, Pieter', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 2],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 1],
    ['Ebert, David A. & Wintner, Sabine P. & Kyne, Peter M.', 2],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 2],
    ['Jonathan H. Walsh & David A. Ebert', 7],
    ['Last, Peter R. & White, William T.', 3],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 2],
    ['Theiss, Susan M. & Ebert, David A.', 2],
    ['Vaz, Diego F. B. & De, Marcelo R.', 6],
    ['Walsh, Jonathan H. & Ebert, David A.', 6],
    ['Walsh, Jonathan H. & Ebert, David A. & Compagno, Leonard J. V.', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=53)',
    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);