function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales du Muséum d\'Histoire Naturelle, Paris', 41],
    ['Conchylia', 4],
    ['European Journal of Taxonomy', 171],
    ['Geodiversitas', 18],
    ['Johan Christi. Trappii', 3],
    ['K. K. Hof-naturalien-cabinet', 2],
    ['Laurentius Salvius', 39],
    ['Mémoires Présentés à l\'Académie Impériale des Sciences de St. Pétersbourg par Divers Savants, et lus dans ses Assemblées', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 6],
    ['Proceedings of the Zoological Society of London, B', 4],
    ['Skinner and Co.', 9],
    ['The American Journal of Science, Series 3', 2],
    ['Visaya', 43],
    ['Xenophora taxonomy', 10],
    ['Zootaxa', 234],
    ['Other (21)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=610)',
    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);