function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the Bernice P. Bishop Museum', 2],
    ['Entomo Helvetica', 2],
    ['Insecta Mundi', 31],
    ['Japanese Journal of Systematic Entomology', 3],
    ['Kontyu', 2],
    ['Linzer biologische Beiträge', 4],
    ['Revista Chilena de Entomologia', 3],
    ['The Coleopterists Bulletin', 4],
    ['Transactions of the Shikoku Entomological Society', 3],
    ['Vestnik Zoologii', 4],
    ['ZooKeys', 42],
    ['Zoological Journal of the Linnean Society', 2],
    ['Zoology and Ecology', 3],
    ['Zootaxa', 46],
    ['Other (11)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=165)',
    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);