function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Annalen des K. K. Naturhistorischen Hofmuseums in Wien', 1],
    ['Arquivos do Museu Nacional Rio de Janeiro', 1],
    ['Australian zoologist', 1],
    ['Biodiversity Data Journal', 7],
    ['Bulletin of the United States Fish Commission', 1],
    ['Check List', 3],
    ['European Journal of Taxonomy', 5],
    ['F. G. Levrault', 1],
    ['Government of the State of New South Wales', 1],
    ['Ichthyol. Notes Queensland', 1],
    ['Journal of Natural History', 2],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 2],
    ['Zootaxa', 24],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=66)',
    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);