function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['ANNALS OF THE NATAL MUSEUM', 4],
    ['African Invertebrates', 17],
    ['Australian Journal of Entomology', 2],
    ['Australian zoologist', 3],
    ['Biodiversity Data Journal', 2],
    ['Entomologische Mitteilungen', 3],
    ['European Journal of Taxonomy', 9],
    ['F. W. Forstmann', 12],
    ['Far Eastern Entomologist', 4],
    ['Fauna of New Zealand', 51],
    ['Journal of Natural History', 5],
    ['Linzer biologische Beiträge', 5],
    ['Papers and proceedings of the Royal Society of Tasmania', 3],
    ['ZooKeys', 76],
    ['Zootaxa', 336],
    ['Other (14)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=549)',
    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);