function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 1],
    ['Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions.', 2],
    ['Annales Zoologici', 1],
    ['Arthropod fauna of the UAE', 4],
    ['Belgian Journal of Entomology', 1],
    ['Biodiversity Data Journal', 5],
    ['Bulletin de la Société Impériale des Naturalistes de Moscou', 1],
    ['Egyptian Journal of Natural History', 2],
    ['European Journal of Taxonomy', 1],
    ['Fauna Entomologica Scandinavica', 1],
    ['Journal of Hymenoptera Research', 3],
    ['Memoires de l\'Institut Francais d\'Afrique Noire', 2],
    ['Myrmecologische Nachrichten', 3],
    ['ZooKeys', 3],
    ['Zootaxa', 24],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=58)',
    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);