function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Societe Entomologique de Belgique', 7],
    ['Arthropod fauna of the UAE', 1],
    ['Biodiversity Data Journal', 1],
    ['Bollettino della Societa Entomologica Italiana', 1],
    ['British Museum', 11],
    ['Bulletin de la Societe Vaudoise des Sciences Naturelles', 1],
    ['Caucasian Entomological Bulletin', 4],
    ['Deutsche Entomologische Zeitschrift', 2],
    ['Entomologische Mitteilungen', 1],
    ['Fauna of Arabia', 1],
    ['Memoirs of the American Entomological Institute', 5],
    ['Myrmecologische Nachrichten', 1],
    ['Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien', 7],
    ['Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911 - 1912). Résultats scientifiques. Hyménoptères', 3],
    ['Zootaxa', 79],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=131)',
    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);