function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 3],
    ['Annales de la Societe Entomologique de Belgique', 9],
    ['Annales de la Societe Entomologique de Belgique, Comptes-rendus des Seances', 12],
    ['Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova)', 10],
    ['Biodiversity Data Journal', 6],
    ['Deutsche Entomologische Zeitschrift', 45],
    ['Egyptian Journal of Natural History', 3],
    ['Genera Insectorum', 5],
    ['Histoire Physique, Naturelle et Politique de Madagascar.', 3],
    ['Mitteilungen der Schweizerischen Entomologischen Gesellschaft', 3],
    ['Myrmecologische Nachrichten', 3],
    ['Proceedings of the Institute of Zoology', 8],
    ['ZooKeys', 5],
    ['Zoosystema', 7],
    ['Zootaxa', 68],
    ['Other (15)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=208)',
    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);