function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 7],
    ['Biodiversity Data Journal', 13],
    ['Biologia Centrali-Americana', 1],
    ['Bulletin of the British Museum (Natural History), Entomology Series', 4],
    ['Bulletin of the British Museum (Natural History). Entomology', 1],
    ['Bulletin of the Buffalo Society of Natural Sciences', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 1],
    ['Linzer biologische Beiträge', 14],
    ['Méquignon-Marvis', 3],
    ['Nota Lepidopterologica', 36],
    ['Officina Libraria Kortii', 3],
    ['Zoological Journal of the Linnean Society', 4],
    ['Zoosystema', 14],
    ['Zoosystematica Rossica', 2],
    ['Zootaxa', 135],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=245)',
    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);