function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 1],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 45],
    ['Biodiversity Data Journal', 72],
    ['Centre for Entomological Studies, Miscellaneous Papers', 1],
    ['Insecta Mundi', 2],
    ['Journal of Natural History', 14],
    ['Linzer biologische Beiträge', 104],
    ['List of the Specimens of Lepidopterous Insects in the Collection of the British Museum', 5],
    ['New Zealand entomologist', 2],
    ['New Zealand journal of zoology', 6],
    ['Nota Lepidopterologica', 12],
    ['Phytotaxa', 2],
    ['Transactions and proceedings of the New Zealand Institute', 4],
    ['ZooKeys', 6],
    ['Zootaxa', 138],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=416)',
    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);