function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broun, Thomas', 1],
    ['Caterino, Michael S.', 6],
    ['Creutzer, Christian', 1],
    ['Erichson, Wilhelm Ferdinand', 5],
    ['Fabricius, Johann Christian', 3],
    ['Ghahari, Hassan & Mazur, Slawomir & Ostovan, Hadi', 2],
    ['Leivas, Fernando W. T. & Moura, Daniel P. & Caterino, Michael S.', 4],
    ['Linnaeus, Carolus', 5],
    ['Majka, Christopher', 1],
    ['Mazur, S. & A. V & A. V', 2],
    ['Mazur, Sławomir & Byk, Adam', 2],
    ['Penati, Fabio', 10],
    ['Peschel, Rüdiger', 7],
    ['Polat, Alper & Yildirim, Erol', 4],
    ['Schrank, Franz von Paula', 2],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    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);