function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 76],
    ['Australasian Journal of Herpetology', 163],
    ['Biodiversity Data Journal', 115],
    ['Bulletin of the American Museum of Natural History', 238],
    ['Check List', 221],
    ['Geodiversitas', 192],
    ['Journal of Natural History', 80],
    ['Laurentius Salvius', 159],
    ['Raffles Bulletin of Zoology', 75],
    ['South American Journal of Herpetology', 412],
    ['Vertebrate Zoology', 280],
    ['ZooKeys', 263],
    ['Zoological Journal of the Linnean Society', 198],
    ['Zoosystema', 242],
    ['Zootaxa', 4275],
    ['Other (137)', 859]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=7848)',
    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);