function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Schnedl, Sara-Maria & Janssen, Ronald', 1],
    ['Born, Ignaz von', 2],
    ['Coan, Eugene V. & Valentich-Scott, Paul', 7],
    ['Conrad, Timothy Abbot', 6],
    ['Conrad, Timothy Abbott', 1],
    ['Da Costa, Emanuel Mendes', 1],
    ['Dall, William Healey', 3],
    ['Hryniewicz, Krzysztof & Amano, Kazutaka', 2],
    ['Linnaeus, Carolus', 26],
    ['Müller, Otto Friedrich', 3],
    ['Oliver, P. Graham & Holmes, Anna & Killeen, Ian & Light, Janice', 5],
    ['Olivi, Giuseppe', 1],
    ['Pilsbry, Henry A.', 1],
    ['Röding, Peter Friedrich', 1],
    ['Smith, Edgar A.', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);