function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 6],
    ['Annales des Sciences Naturelles, Zoologie, Série 5', 1],
    ['Anzeiger', 1],
    ['Arch. Zool. Anat. Fisiol., Genova, 2', 1],
    ['Biodiversity Data Journal', 5],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 2],
    ['Calcutta Journal of Natural History, and Miscellany of the Arts and Sciences in India', 3],
    ['Check List', 2],
    ['Copeia', 1],
    ['F. G. Levrault', 11],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 5],
    ['Proceedings of the Zoological Society of London, B', 4],
    ['Raffles Bulletin of Zoology', 11],
    ['Report of the British Association for the Advancement of Science', 2],
    ['Zootaxa', 36],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=104)',
    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);