function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 15],
    ['Australian Journal of Zoology, Supplementary Series', 4],
    ['Biodiversity, biogeography and nature conservation in Wallacea and New Guinea. Volume 3, Biodiversity, biogeography and nature c', 1],
    ['Bulletin de la Société Entomologique de France', 1],
    ['Insecta Mundi', 29],
    ['Journal of Natural History', 69],
    ['The Coleopterists Bulletin', 12],
    ['Transactions of the Linnean Society of London', 1],
    ['ZooKeys', 8],
    ['Zoological Systematics', 2],
    ['Zoosystema', 2],
    ['Zootaxa', 74]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=218)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);