function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletins de l\'Académie Royale des Sciences, des Lettres et des Beaux-arts de Belgique', 2],
    ['Insecta Mundi', 1],
    ['Insecta matsumurana', 1],
    ['Linzer biologische Beiträge', 1],
    ['Miscellanea Zoologica Sumatrana', 7],
    ['Proceedings of the Japanese Society of Systematic Zoology', 1],
    ['Systematic Entomology', 6],
    ['Transactions of the Entomological Society of London', 2],
    ['Treubia', 1],
    ['Wiener Entomologische Monatschrift', 1],
    ['Zootaxa', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=62)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);