function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 54],
    ['Biodiversity Data Journal', 900],
    ['Entomo Helvetica', 23],
    ['European Journal of Taxonomy', 67],
    ['Far Eastern Entomologist', 157],
    ['Insecta Mundi', 29],
    ['Journal of Natural History', 36],
    ['Linzer biologische Beiträge', 98],
    ['Nota Lepidopterologica', 27],
    ['PeerJ', 12],
    ['Transactions and proceedings of the New Zealand Institute', 22],
    ['ZooKeys', 183],
    ['Zoological Journal of the Linnean Society', 63],
    ['Zoosystema', 24],
    ['Zootaxa', 1826],
    ['Other (56)', 136]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3657)',
    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);