function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin', 1],
    ['Algemeene Konst- en Letter-Bode', 1],
    ['An. Mus. Nac. Chile, Zool.', 1],
    ['Annals of the Queensland Museum', 1],
    ['Bulletin of the American Museum of Natural History', 2],
    ['Bulletin of the United States National Museum', 1],
    ['Calcutta Journal of Natural History, and Miscellany of the Arts and Sciences in India', 1],
    ['European Journal of Taxonomy', 20],
    ['Journal of Natural History', 2],
    ['Proceedings of the Boston Society of Natural History', 2],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Records of the Indian Museum', 2],
    ['Veit', 3],
    ['Zoological Journal of the Linnean Society', 11],
    ['Zootaxa', 100],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=162)',
    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);