function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 4],
    ['Arch. Mus. Lyon', 4],
    ['Biodiversity Data Journal', 5],
    ['Bulletin of the British Museum (Natural History), Zoology Series', 41],
    ['Bulletin of the United States National Museum', 4],
    ['Copeia', 4],
    ['Proceedings of the Zoological Society of London, B', 21],
    ['Revue de Zoologie et de Botanique Africaines', 8],
    ['Revue française d\'Aquariologie Herpétologie', 5],
    ['Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin', 7],
    ['Tropical Fish Hobbyist', 4],
    ['Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien', 5],
    ['Zoologische Mededelingen, Leiden', 11],
    ['Zoologische Verhandelingen, Leiden', 8],
    ['Zootaxa', 41],
    ['Other (46)', 77]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=249)',
    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);