function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 13],
    ['European Journal of Taxonomy', 23],
    ['Fragmenta Faunistica', 11],
    ['Journal of Natural History', 236],
    ['Journal of Species Research', 14],
    ['Linzer biologische Beiträge', 7],
    ['Mémoires du Muséum national d\'Histoire naturelle', 13],
    ['Raffles Bulletin of Zoology', 11],
    ['Records of the Australian Museum', 32],
    ['Species Diversity', 10],
    ['ZooKeys', 131],
    ['Zoological Journal of the Linnean Society', 86],
    ['Zoosystema', 24],
    ['Zoosystematics and Evolution', 14],
    ['Zootaxa', 293],
    ['Other (16)', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=953)',
    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);