function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 58],
    ['African Invertebrates', 5],
    ['Bibliopolii Academici Novi', 4],
    ['Biodiversity Data Journal', 10],
    ['Entomo Helvetica', 3],
    ['Entomologia Africana', 3],
    ['European Journal of Taxonomy', 9],
    ['Insecta Mundi', 120],
    ['Linzer biologische Beiträge', 83],
    ['Revue suisse de Zoologie', 5],
    ['The Coleopterists Bulletin', 228],
    ['Transactions of the Linnean Society of London', 6],
    ['ZooKeys', 51],
    ['Zoosystema', 10],
    ['Zootaxa', 569],
    ['Other (13)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1183)',
    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);