function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 821],
    ['Biodiversity Data Journal', 2649],
    ['Birkhaeuser Verlag', 840],
    ['European Journal of Taxonomy', 1471],
    ['Info Flora Schweiz', 904],
    ['Insecta Mundi', 1067],
    ['Journal of Natural History', 809],
    ['Laurentius Salvius', 899],
    ['Linzer biologische Beiträge', 1389],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 2000],
    ['PhytoKeys', 1210],
    ['Phytotaxa', 3446],
    ['ZooKeys', 2058],
    ['Zoosystema', 3422],
    ['Zootaxa', 19399],
    ['Other (1177)', 14117]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=56501)',
    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);