function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Academie Royale des Sciences d\'Outre-Mer, Cl. Sci. Nat. Méd., New Series', 2],
    ['Annalen des Naturhistorischen Museums in Wien', 5],
    ['Annali del Museo Civico di Storia Naturale di Genova', 1],
    ['Archiv für Naturgeschichte', 4],
    ['Bulletin de l\'Institut Royal des Sciences Naturelles de Belgique', 1],
    ['Check List', 5],
    ['Cybium', 1],
    ['E. J. Brill', 2],
    ['Ichthyological Exploration of Freshwaters', 2],
    ['Neotropical Ichthyology', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Raffles Bulletin of Zoology', 2],
    ['Zoologische Abhandlungen des Staatlichen Museums für Tierkunde, Dresden', 2],
    ['Zoosystematics and Evolution', 3],
    ['Zootaxa', 16],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=57)',
    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);