function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Societe Entomologique de Belgique', 5],
    ['Annales de la Societe Entomologique de Belgique, Comptes-rendus des Seances', 2],
    ['Annales de la Société Entomologique de France', 4],
    ['Biodiversity Data Journal', 11],
    ['Bollettino della Societa Entomologica Italiana', 5],
    ['Bulletin de la Societe Vaudoise des Sciences Naturelles', 6],
    ['Deutsche Entomologische Zeitschrift', 7],
    ['Journal of the Proceedings of the Linnean Society of London, Zoology', 5],
    ['PhytoKeys', 7],
    ['Phytotaxa', 3],
    ['Transactions of the Entomological Society of London', 7],
    ['Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien', 3],
    ['ZooKeys', 9],
    ['Zoosystema', 7],
    ['Zootaxa', 87],
    ['Other (28)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=204)',
    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);