function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australian Journal of Zoology, Supplementary Series', 10],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College.', 1],
    ['Memoirs of Museum Victoria', 1],
    ['New Zealand entomologist', 1],
    ['Pacific insects', 46],
    ['Pacific insects monograph', 1],
    ['Papéis Avulsos de Zoologia', 2],
    ['Records of the Australian Museum', 4],
    ['Records of the Canterbury Museum', 5],
    ['Revue suisse de Zoologie', 1],
    ['Revue suisse de zoologie', 3],
    ['Transactions and proceedings of the New Zealand Institute', 1],
    ['Zootaxa', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=77)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);