function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 1681],
    ['Acarological Studies', 99],
    ['Biodiversity Data Journal', 115],
    ['Ecologica Montenegrina', 237],
    ['European Journal of Taxonomy', 39],
    ['Journal of Natural History', 167],
    ['Linzer biologische Beiträge', 35],
    ['Persian Journal of Acarology', 614],
    ['Records of the Western Australian Museum', 17],
    ['Species Diversity', 16],
    ['ZooKeys', 320],
    ['Zoological Journal of the Linnean Society', 115],
    ['Zoological Systematics', 44],
    ['Zoosystema', 51],
    ['Zootaxa', 5579],
    ['Other (52)', 153]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=9282)',
    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);