function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Societatis Scientiarum Fennicae', 18],
    ['Biodiversity Data Journal', 47],
    ['British Museum', 215],
    ['Fauna Entomologica Scandinavica', 23],
    ['Journal of the Proceedings of the Linnean Society of London, Zoology', 50],
    ['Laurentius Salvius', 18],
    ['Madras Journal of Literature and Science', 20],
    ['Myrmecological News', 48],
    ['Myrmecologische Nachrichten', 22],
    ['Proceedings of the Institute of Zoology', 19],
    ['Unknown Publisher', 21],
    ['W. Engelmann', 17],
    ['ZooKeys', 18],
    ['Zoosystema', 21],
    ['Zootaxa', 62],
    ['Other (35)', 84]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=703)',
    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);