function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akademiia Nauk SSSR, Trudy P. P. Shirshov Instytut Okeanologii', 1],
    ['American Museum Novitates', 3],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Bulletin de l\'Institut Océanographique de Monaco', 1],
    ['Bulletin of Marine Science', 1],
    ['European Journal of Taxonomy', 3],
    ['Journal of the Washington Academy of Sciences', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Scientific Results of the M. Sars North Atlantic Deep-Sea Expedition 1910', 1],
    ['Special Bulletin of the United States National Museum', 2],
    ['Verhandlungen der Deutschen Zoologischen Gesellschaft', 1],
    ['Voprosy Ikhtiologii', 2],
    ['Zoologica', 1],
    ['Zootaxa', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);