function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales du Muséum d\'Histoire Naturelle, Paris', 41],
    ['Biodiversity Data Journal', 1],
    ['Conchylia', 4],
    ['European Journal of Taxonomy', 54],
    ['Geodiversitas', 7],
    ['K. K. Hof-naturalien-cabinet', 2],
    ['Laurentius Salvius', 39],
    ['Panckoucke', 1],
    ['Proceedings of the Zoological Society of London', 1],
    ['Skinner and Co.', 9],
    ['The American Journal of Science, Series 3', 2],
    ['Visaya', 25],
    ['Xenophora taxonomy', 3],
    ['Zoosystematics and Evolution', 2],
    ['Zootaxa', 130],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=324)',
    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);