function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 1],
    ['Beiträge zur Neotropischen Fauna', 1],
    ['Biodiversity Data Journal', 256],
    ['European Journal of Taxonomy', 7],
    ['Journal of Natural History', 21],
    ['Marine Biology Research', 2],
    ['Memoirs of Museum Victoria', 1],
    ['Organisms Diversity & Evolution', 2],
    ['Papéis Avulsos de Zoologia', 2],
    ['Records of the Australian Museum', 56],
    ['Wilhelm Englemann', 3],
    ['ZooKeys', 81],
    ['Zoological Journal of the Linnean Society', 3],
    ['Zoological Science', 2],
    ['Zootaxa', 605],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1047)',
    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);