function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 3829],
    ['Biodiversity Data Journal', 15182],
    ['European Journal of Taxonomy', 8362],
    ['Insecta Mundi', 7753],
    ['Journal of Natural History', 5616],
    ['Laurentius Salvius', 3113],
    ['Linzer biologische Beiträge', 7892],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 3792],
    ['PhytoKeys', 3011],
    ['Phytotaxa', 7573],
    ['The Coleopterists Bulletin', 3249],
    ['ZooKeys', 23731],
    ['Zoological Journal of the Linnean Society', 2595],
    ['Zoosystema', 5843],
    ['Zootaxa', 126224],
    ['Other (3034)', 81819]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=309584)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);