function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 1],
    ['Biodiversity Data Journal', 7],
    ['Carl Kollmann', 1],
    ['Ecologica Montenegrina', 1],
    ['Evolutionary Systematics', 13],
    ['Historia fisica y politica de Chile', 1],
    ['Jahresberichte Wiener entomologischer Verein', 1],
    ['Linzer biologische Beiträge', 15],
    ['Voyage de la corvette l\'Astrolabe: exécuté par ordre du roi, pendant les années 1826 - 1827 - 1828 - 1829', 2],
    ['Zoosystema', 6],
    ['Zootaxa', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=64)',
    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);