function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zootaxonomica Sinica', 9],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 6],
    ['European Journal of Taxonomy', 7],
    ['Journal of Natural History', 31],
    ['Journal of the faculty of agriculture, Kyushu university, Japan', 4],
    ['Nauplius', 3],
    ['PeerJ', 8],
    ['Raffles Bulletin of Zoology', 60],
    ['Records of the Zoological Survey of India', 5],
    ['Senckenbergiana Biologica', 4],
    ['ZooKeys', 40],
    ['Zoological Journal of the Linnean Society', 3],
    ['Zoological Science', 3],
    ['Zoological studies', 3],
    ['Zootaxa', 84],
    ['Other (4)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=277)',
    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);