function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alcock, Alfred William', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bañon, Rafael & Arronte, Juan Carlos', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 5],
    ['Cocco, A.', 1],
    ['Costa, Oronzio Gabriele', 1],
    ['Gilchrist, J. D. F. & von Bonde, C.', 2],
    ['Golani, Daniel', 2],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Haedrich, R. L.', 2],
    ['Hobbs, K. L.', 1],
    ['Johnson, J. Y.', 1],
    ['Jordan, David Starr & Gilbert, Charles H.', 1],
    ['Last, Peter R. & Daley, Ross K. & Duhamel, Guy', 3],
    ['Simian, Gaëlle & Abraham, Daniel & Bailly, Nicolas', 2],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    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);