function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Naturgeschichte', 3],
    ['Australian Journal of Marine and Freshwater Research', 1],
    ['Breviora', 1],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Check List', 1],
    ['Journal of the Royal Society of New Zealand', 4],
    ['Memoirs of the National Academy of Sciences', 1],
    ['Memoirs of the National Museum Melbourne', 1],
    ['Papers and proceedings of the Royal Society of Tasmania', 6],
    ['Proceedings of the Linnean Society of New South Wales', 5],
    ['Proceedings of the Zoological Acclimatisation Society of Victoria', 3],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Trans. Proc. N. Z. Inst.', 2],
    ['Trans. Proc. R. Soc. N. Z.', 2],
    ['Zootaxa', 25],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=68)',
    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);