function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen der Akademie der Wissenschaften der München Mathematik-Physikalische Klasse', 1],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 1],
    ['Anzeiger', 3],
    ['Archives Néerlandaises des Sciences Exactes et Naturelles', 1],
    ['Arquivos do Museu Nacional Rio de Janeiro', 1],
    ['Biodiversity Data Journal', 3],
    ['F. G. Levrault', 3],
    ['Journal of the Faculty of Science, University of Tokyo, Section 4 Zoology', 1],
    ['Journal of the Ocean Science Foundation', 11],
    ['Longman’s', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Records of the Australian Museum', 3],
    ['Trans. N. Z. Inst.', 2],
    ['Verhandlungen des Naturhistorisch-Medizinischen Vereins zu Heidelberg', 2],
    ['Zootaxa', 30],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=71)',
    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);