function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amurian Zoological Journal', 2],
    ['Arkiv för Zoologi', 4],
    ['Arthropod Systematics & amp; Phylogeny', 2],
    ['Bey dem Verfasser zu finden', 2],
    ['Biodiversity Data Journal', 9],
    ['Entomo Helvetica', 5],
    ['Far Eastern Entomologist', 8],
    ['Insect Systematics and Diversity', 8],
    ['Insecta Mundi', 7],
    ['Journal of Natural History', 4],
    ['Linzer biologische Beiträge', 14],
    ['List of the Specimens of Lepidopterous Insects in the Collection of the British Museum', 26],
    ['Transactions of the Entomological Society of London', 4],
    ['ZooKeys', 39],
    ['Zootaxa', 542],
    ['Other (8)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=689)',
    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);