function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin de la Société Impériale des Naturalistes de Moscou', 1],
    ['Deutsche Entomologische Zeitschrift', 1],
    ['Elytra, Tokyo', 5],
    ['Entomologica Scandinavica, Suppl.', 5],
    ['Entomologica basiliensia', 3],
    ['Entomologica scandinavica', 6],
    ['Entomological Review of Japan', 35],
    ['Entomologische Nachrichten und Berichte', 3],
    ['Genus', 2],
    ['Japanese Journal of Systematic Entomology', 9],
    ['Koleopterologische Rundschau', 2],
    ['Linzer biologische Beiträge', 2],
    ['Opuscula Entomologica', 7],
    ['Psyche', 7],
    ['Zootaxa', 3],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=99)',
    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);