function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 336],
    ['Bulletin of the American Museum of Natural History', 27],
    ['E. W. Janson', 11],
    ['Far Eastern Entomologist', 138],
    ['Insecta Mundi', 12],
    ['Journal of Hymenoptera Research', 55],
    ['Journal of Melittology', 19],
    ['Journal of Natural History', 24],
    ['Journal of the Proceedings of the Linnean Society of London, Zoology', 12],
    ['Linzer biologische Beiträge', 275],
    ['Papéis Avulsos de Zoologia', 15],
    ['Records of the Zoological Survey of India', 9],
    ['ZooKeys', 102],
    ['Zoological Journal of the Linnean Society', 29],
    ['Zootaxa', 1896],
    ['Other (25)', 83]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3043)',
    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);