function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Fad, Hassan H. & El-Torkey, Ashraf M.', 6],
    ['Broun, Thomas', 1],
    ['Bukejs, Andris', 1],
    ['Erichson, Wilhelm Ferdinand', 2],
    ['Ghahari, Hassan & Mazur, Slawomir & Ostovan, Hadi', 15],
    ['Kozminykh, V. O.', 3],
    ['Lackner, Tomas & Leschen, Richard A. B.', 20],
    ['Lackner, Tomáš', 8],
    ['Lackner, Tomáš & Vienna, Pierpaolo', 5],
    ['LeConte, John L.', 1],
    ['Penati, Fabio', 23],
    ['Peschel, Rüdiger', 8],
    ['Polat, Alper & Yildirim, Erol', 7],
    ['Shayya, Salman & Degallier, Nicolas & Nel, Andre & Azar, Dany', 13],
    ['Théry, Thomas & Gomy, Yves & Degallier, Nicolas', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=120)',
    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);