function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['ACCADEMIA NAZIONALE DEI XL Estratto dai Rendiconti', 2],
    ['Annales historico-naturales Musei nationalis hungarici', 19],
    ['Biodiversity Data Journal', 130],
    ['Ecologica Montenegrina', 6],
    ['European Journal of Taxonomy', 48],
    ['Journal of Natural History', 11],
    ['Mededelingen Landbouwhogeschool Wageningen', 4],
    ['Pakistan Journal of Nematology', 20],
    ['Revue suisse de Zoologie', 5],
    ['Species Diversity', 10],
    ['Transactions of the Linnean Society of London', 4],
    ['ZooKeys', 5],
    ['Zoologischen Anzeiger', 3],
    ['Zoologischer Anzeiger', 3],
    ['Zootaxa', 275],
    ['Other (8)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=557)',
    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);