function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 3],
    ['Annales du Musée du Congo Belge, Série 1, Zoologiques', 1],
    ['Annals of the Durban Museum', 1],
    ['Bronner', 2],
    ['Mem. Inst. Rech. Sci. Madagascar, F', 2],
    ['Memoirs of the Queensland Museum', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 2],
    ['Proceedings of the Linnean Society of New South Wales', 4],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Schmerber', 1],
    ['Transactions of the Royal Society of Arts and Sciences of Mauritius, New Series', 1],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 1],
    ['Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien', 2],
    ['Zootaxa', 3],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=30)',
    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);