function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annual Report of the Peabody Academy of Science', 25],
    ['Biodiversity Data Journal', 52],
    ['Birkhaeuser Verlag', 33],
    ['Check List', 8],
    ['Far Eastern Entomologist', 14],
    ['Insecta Mundi', 534],
    ['Linzer biologische Beiträge', 12],
    ['Metamorphosis', 7],
    ['PhytoKeys', 17],
    ['Revista Chilena de Entomología', 18],
    ['Systematics and Biodiversity', 10],
    ['ZooKeys', 25],
    ['Zoological Journal of the Linnean Society', 12],
    ['Zoosystema', 18],
    ['Zootaxa', 1001],
    ['Other (23)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1839)',
    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);