function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 180],
    ['European Journal of Taxonomy', 653],
    ['Geodiversitas', 282],
    ['Journal of Natural History', 1834],
    ['Memoirs of Museum Victoria', 112],
    ['Mémoires du Muséum national d\'Histoire naturelle', 164],
    ['Nauplius', 112],
    ['Raffles Bulletin of Zoology', 1003],
    ['Records of the Australian Museum', 711],
    ['Species Diversity', 161],
    ['ZooKeys', 959],
    ['Zoological Journal of the Linnean Society', 637],
    ['Zoosystema', 1285],
    ['Zoosystematics and Evolution', 163],
    ['Zootaxa', 15820],
    ['Other (295)', 1879]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=25955)',
    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);