function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 351],
    ['Archiv für Molluskenkunde', 888],
    ['Biodiversity Data Journal', 454],
    ['European Journal of Taxonomy', 1153],
    ['Geodiversitas', 327],
    ['Journal of Natural History', 592],
    ['Laurentius Salvius', 511],
    ['Mémoires du Muséum national d\'Histoire naturelle', 388],
    ['Raffles Bulletin of Zoology', 286],
    ['Visaya', 636],
    ['ZooKeys', 5855],
    ['Zoological Journal of the Linnean Society', 622],
    ['Zoosystema', 615],
    ['Zoosystematics and Evolution', 447],
    ['Zootaxa', 7788],
    ['Other (344)', 4036]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=24949)',
    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);