function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 2277],
    ['Biodiversity Data Journal', 12873],
    ['Bulletin of the American Museum of Natural History', 1876],
    ['European Journal of Taxonomy', 4529],
    ['Insecta Mundi', 2440],
    ['Journal of Natural History', 2982],
    ['Linzer biologische Beiträge', 7868],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 1214],
    ['PhytoKeys', 1574],
    ['Phytotaxa', 4065],
    ['Revue suisse de Zoologie', 1107],
    ['ZooKeys', 9176],
    ['Zoological Journal of the Linnean Society', 1719],
    ['Zoosystema', 2798],
    ['Zootaxa', 63898],
    ['Other (2082)', 38135]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=158531)',
    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);