function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 16],
    ['Biodiversity Data Journal', 50],
    ['Check List', 4],
    ['Entomological Magazine', 3],
    ['European Journal of Taxonomy', 31],
    ['Insecta Mundi', 23],
    ['Japanese Journal of Systematic Entomology', 1],
    ['Journal of Hymenoptera Research', 4],
    ['Journal of Natural History', 20],
    ['Linzer biologische Beiträge', 21],
    ['Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Proceedings of the Washington Academy of Science', 1],
    ['ZooNotes', 2],
    ['Zootaxa', 60],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=241)',
    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);