function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Journal of Conchology', 1],
    ['Archives du Muséum d\'Histoire Naturelle de Lyon', 1],
    ['Bulletin of Geosciences', 1],
    ['European Journal of Taxonomy', 15],
    ['Geodiversitas', 1],
    ['Heineck et Faber', 1],
    ['J. - B. Baillière', 1],
    ['Johan Christi. Trappii', 1],
    ['Johan. Christi. Trappii', 4],
    ['Journal of the Faculty of Science, Niigata University, Series II, Biology, Geology and Mineralogy', 1],
    ['Linzer biologische Beiträge', 4],
    ['Proceedings of the Zoological Society of London', 4],
    ['Subterranean Biology', 3],
    ['ZooKeys', 13],
    ['Zootaxa', 6],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=65)',
    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);