function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 3],
    ['Annales de la Societe Entomologique de Belgique', 16],
    ['Biodiversity Data Journal', 77],
    ['European Journal of Taxonomy', 14],
    ['Histoire physique, naturelle et politique de Madagascar. 20.', 2],
    ['Journal of Natural History', 24],
    ['Linzer biologische Beiträge', 17],
    ['Revue Suisse de Zoologie', 2],
    ['Russian Entomological Journal', 6],
    ['Subterranean Biology', 20],
    ['ZooKeys', 81],
    ['Zoological Journal of the Linnean Society', 4],
    ['Zoological Systematics', 17],
    ['Zoosystema', 350],
    ['Zootaxa', 582],
    ['Other (5)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1223)',
    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);