function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 12],
    ['European Journal of Taxonomy', 12],
    ['Japanese Journal of Systematic Entomology', 19],
    ['Journal of Natural History', 119],
    ['Linzer biologische Beiträge', 56],
    ['Mémoires Présentés par Divers Savans à l\'Académie Royale des Sciences de l\'Institut de France, et Imprimés par son Ordre', 98],
    ['Papéis Avulsos de Zoologia', 11],
    ['Phytotaxa', 3],
    ['Proceedings of the Biological Society of Washington', 17],
    ['Schulz-Wundermann', 8],
    ['Species Diversity', 3],
    ['Turkish Journal of Zoology', 5],
    ['ZooKeys', 21],
    ['Zoodiversity', 27],
    ['Zootaxa', 978],
    ['Other (16)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1408)',
    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);