function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 75],
    ['Acta Entomologica Musei Nationalis Pragae', 536],
    ['Biodiversity Data Journal', 172],
    ['Check List', 256],
    ['European Journal of Taxonomy', 389],
    ['Insect Systematics & Evolution', 38],
    ['Insecta Mundi', 602],
    ['Journal of Natural History', 229],
    ['Laurentius Salvius', 64],
    ['Mémoires du Muséum national d\'Histoire naturelle', 89],
    ['The Coleopterists Bulletin', 232],
    ['ZooKeys', 1723],
    ['Zoological Systematics', 83],
    ['Zoosystema', 120],
    ['Zootaxa', 2027],
    ['Other (68)', 249]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=6884)',
    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);