function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 29],
    ['Alpine Entomology', 8],
    ['Amurian Zoological Journal', 4],
    ['Biodiversity Data Journal', 20],
    ['Deutsche Entomologische Zeitschrift', 33],
    ['Entomo Helvetica', 8],
    ['Far Eastern Entomologist', 9],
    ['Insecta Mundi', 5],
    ['Journal of Natural History', 26],
    ['Linzer biologische Beiträge', 107],
    ['Nota Lepidopterologica', 21],
    ['Revue suisse de zoologie', 11],
    ['Species Diversity', 7],
    ['ZooKeys', 149],
    ['Zootaxa', 1692],
    ['Other (20)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2162)',
    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);