function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société entomologique de Belgique', 1],
    ['Biodiversity Data Journal', 1],
    ['Bulletin de la Société Entomologique de France', 1],
    ['Elytra, Tokyo', 93],
    ['Far Eastern Entomologist', 1],
    ['Japanese Journal of Systematic Entomology', 53],
    ['L\'Échange, Revue Linnéenne', 3],
    ['Mélanges exotico-entomologiques. Moulins', 3],
    ['Records of the Zoological Survey of India', 1],
    ['The Coleopterists Bulletin', 1],
    ['ZooKeys', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=161)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);