function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abella, A.', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Barnard, Keppel Harcourt', 1],
    ['Bigelow, H. B. & Schroeder, W. C. & Springer, S.', 1],
    ['Biscoito, Manuel & Ribeiro, Cláudia & Freitas, Mafalda', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Compagno, Leonard J. V.', 1],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 2],
    ['Ebert, David A. & Wintner, Sabine P. & Kyne, Peter M.', 2],
    ['Fourmanoir, Pierre', 2],
    ['Golani, Daniel', 2],
    ['Jordan, David Starr & Evermann, Barton Warren', 2],
    ['Springer, S.', 2],
    ['Tanaka, Shigeho', 2],
    ['de Blainville, Henri Marie Ducrotay', 18],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=60)',
    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);