function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 4033],
    ['Biodiversity Data Journal', 17629],
    ['Bulletin of the American Museum of Natural History', 2752],
    ['European Journal of Taxonomy', 7337],
    ['Insecta Mundi', 4931],
    ['Journal of Natural History', 5519],
    ['Laurentius Salvius', 2902],
    ['Linzer biologische Beiträge', 11290],
    ['Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1', 2479],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 3154],
    ['Phytotaxa', 7282],
    ['ZooKeys', 18876],
    ['Zoological Journal of the Linnean Society', 3012],
    ['Zoosystema', 4832],
    ['Zootaxa', 125981],
    ['Other (3393)', 95856]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=317865)',
    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);