function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 3],
    ['Asiatic Researches', 6],
    ['Boston Journal of Natural History', 3],
    ['Bulletin of the United States Fish Commission', 3],
    ['Check List', 3],
    ['Madras Journal of Literature and Science', 5],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 9],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 7],
    ['Proceedings of the Boston Society of Natural History', 4],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Proceedings of the Zoological Society of London, B', 4],
    ['Report of the British Association for the Advancement of Science', 5],
    ['Salviucci', 14],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 3],
    ['Zootaxa', 11],
    ['Other (44)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=137)',
    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);