function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2 nd International Symposium on Jurassic Stratigraphy, Lisbon 1987. Rocha, R. B. & Soares, A. F. (Eds.).', 4],
    ['Acta Entomologica Musei Nationalis Pragae', 7],
    ['African Invertebrates', 5],
    ['Biodiversity Data Journal', 33],
    ['Bulletin of the American Museum of Natural History', 7],
    ['Entomo Helvetica', 5],
    ['F. W. Forstmann', 7],
    ['Journal of Natural History', 13],
    ['Records of the Australian Museum', 9],
    ['Schultz-Wundermann', 21],
    ['Verhandlungen des Zoologisch-Botanischen Vereins in Wien.', 8],
    ['Vestnik Zoologii', 10],
    ['ZooKeys', 19],
    ['Zoological Systematics', 8],
    ['Zootaxa', 510],
    ['Other (27)', 50]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=716)',
    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);