function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales du Muséum d\'Histoire Naturelle, Paris', 1],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the American Museum of Natural History', 122],
    ['Bulletin of the Florida State Museum, Biological Sciences', 1],
    ['Catalogue of the Birds in the British Museum', 1],
    ['Check List', 4],
    ['Deterville', 1],
    ['G. Levrault', 2],
    ['Gabriel Nicolaus Raspe', 1],
    ['Garnery', 1],
    ['Laurentius Salvius', 15],
    ['The Philosophical Magazine', 6],
    ['Utrecht', 3],
    ['Zoosystema', 7],
    ['Zootaxa', 32],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=203)',
    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);