function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 2],
    ['Australian zoologist', 2],
    ['Biodiversity Data Journal', 11],
    ['Bulletin of the United States National Museum', 2],
    ['E. J. Brill', 3],
    ['European Journal of Taxonomy', 2],
    ['Laurentius Salvius', 21],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 3],
    ['Privately published', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 4],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Proceedings of the Zoological Society of London, B', 5],
    ['Records of the Australian Museum', 3],
    ['Rep. Inst. Fish. Biol., Taipei', 3],
    ['Zootaxa', 32],
    ['Other (24)', 28]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=128)',
    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);