function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Academy of Natural Sciences', 40],
    ['Annals of the Lyceum of Natural History of New York', 91],
    ['F. A. Brockhaus', 9],
    ['Gebrüder Paetel', 6],
    ['Journal de Conchyliologie', 10],
    ['Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft', 4],
    ['Nautilus', 12],
    ['Press Publishing Company', 11],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 5],
    ['Proceedings of the Boston Society of Natural History', 13],
    ['Proceedings of the Zoological Society of London', 108],
    ['Quarterly Journal of Science, Literature, and the Arts', 7],
    ['Reeve & Benham', 12],
    ['University Press', 6],
    ['Zoological Society of London', 29],
    ['Other (15)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=387)',
    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);