function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 2],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the United States Bureau of Fisheries', 2],
    ['Bulletin of the United States Fish Commission', 3],
    ['Copeia', 5],
    ['D. Carlisle', 2],
    ['Ezhegodnik Zoologicheskogo Muzeya Imperatorskogo Akademii Nauk', 3],
    ['Ichthyological Exploration of Freshwaters', 2],
    ['Laurentius Salvius', 7],
    ['Mölleri apud Heineck et Faber', 3],
    ['Occasional Papers of the Museum of Zoology, University of Michigan', 5],
    ['Panckoucke', 2],
    ['Proceedings of AAAS [The American Association for the Advancement of Science]', 3],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Zootaxa', 21],
    ['Other (28)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=94)',
    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);