function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Entomologique Belge', 1],
    ['Arkiv för Zoologi', 1],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 3],
    ['Etud Ent', 1],
    ['Far Eastern Entomologist', 11],
    ['Japanese Journal of Systematic Entomology', 20],
    ['Journal of Asia-Pacific Entomology', 1],
    ['Journal of the Academy of Natural Sciences of Philadelphia', 1],
    ['Linzer biologische Beiträge', 77],
    ['Officina Libraria Kortii', 2],
    ['Papilio', 1],
    ['Russian Entomological Journal', 1],
    ['ZooKeys', 10],
    ['Zoosystematica Rossica', 8],
    ['Zootaxa', 481],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=620)',
    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);