function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 9],
    ['Australian Entomologist', 1],
    ['Australian Journal of Entomology', 1],
    ['Australian Journal of Zoology, Supplementary Series', 24],
    ['Biodiversity Data Journal', 4],
    ['Birkhaeuser Verlag', 2],
    ['European Journal of Taxonomy', 10],
    ['General and applied entomology', 8],
    ['Geodiversitas', 2],
    ['Journal of Natural History', 5],
    ['Proceedings of the Linnean Society of London, Zoology', 10],
    ['The Entomologist', 2],
    ['ZooKeys', 2],
    ['Zoologische verhandelingen', 6],
    ['Zootaxa', 59],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=150)',
    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);