function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Societe Entomologique de Belgique', 3],
    ['Annales de la Société Entomologique de France', 3],
    ['Berliner Entomologische Zeitschrift', 3],
    ['Biodiversity Data Journal', 30],
    ['Bulletin de la Societe Vaudoise des Sciences Naturelles', 2],
    ['Chinese Journal of Entomology', 11],
    ['European Journal of Taxonomy', 68],
    ['Memoires de l\'Institut Francais d\'Afrique Noire', 4],
    ['Memoirs of the American Entomological Institute', 83],
    ['Revue de Zoologie Africaine', 5],
    ['Transactions of the Entomological Society of London', 6],
    ['Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911 - 1912). Résultats scientifiques. Hyménoptères', 3],
    ['ZooKeys', 40],
    ['Zoosystematica Rossica', 6],
    ['Zootaxa', 76],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=357)',
    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);