function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Helvetica', 1],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Annals of the Carnegie Museum', 1],
    ['Australian zoologist', 1],
    ['Bulletin de l\'Institut Océanographique de Monaco', 1],
    ['Dana Reports', 2],
    ['European Journal of Taxonomy', 6],
    ['F. G. Levrault', 1],
    ['Geological Survey of Canada Contributions to Canadian Palaeontology', 1],
    ['Japanese Journal of Ichthyology', 1],
    ['Kungliga Svenska Vetenskapsakademiens Handlingar', 1],
    ['Memoirs of the Carnegie Museum', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Proceedings of the New England Zoölogical Club', 1],
    ['Zootaxa', 18],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=45)',
    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);