function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Societe Entomologique de Belgique', 2],
    ['Annales de la Société Entomologique de France', 5],
    ['Biodiversity Data Journal', 3],
    ['Bollettino della Societa Entomologica Italiana', 1],
    ['British Museum', 9],
    ['Bulletin of the American Museum of Natural History', 2],
    ['Caucasian Entomological Bulletin', 1],
    ['European Journal of Taxonomy', 1],
    ['Histoire Physique, Naturelle et Politique de Madagascar.', 2],
    ['Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten', 1],
    ['Journal of Entomology', 1],
    ['Journal of the Proceedings of the Linnean Society of London, Zoology', 4],
    ['Memoirs of the American Entomological Institute', 25],
    ['PeerJ', 3],
    ['Zootaxa', 11],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=75)',
    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);