function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 5],
    ['Conrad, Timothy Abbot', 10],
    ['Garrigues, Bernard & Merle, Didier', 17],
    ['Houart, Roland', 7],
    ['Houart, Roland & Héros, Virginie', 90],
    ['Houart, Roland & Sellanes, Javier', 15],
    ['Linnaeus, Carolus', 62],
    ['Luca, Javier Di & Zelaya, Diego G.', 5],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 9],
    ['Merle, Didier & Garrigues, Bernard', 13],
    ['Merle, Didier & Garrigues, Bernard & Pointier, Jean-Pierre', 5],
    ['Oliverio, Marco', 139],
    ['Roland, Houart & Virginie, Héros', 15],
    ['Röding, Peter Friedrich', 13],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 6],
    ['Other (56)', 96]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=507)',
    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);