function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Venezuelica', 3],
    ['Acta Palaeontologica Polonica', 3],
    ['Annales Societe Entomologique France', 9],
    ['Biodiversity Data Journal', 14],
    ['Bulletins de l\'Académie royale des sciences, des lettres et des beaux-arts de Belgique', 6],
    ['Insecta matsumurana', 11],
    ['Miscellanea Zoologica Sumatrana', 20],
    ['Mémoires de la Société Royale des Sciences de Liège', 4],
    ['Mémoires du Muséum national d\'Histoire naturelle', 19],
    ['Odonatologica', 21],
    ['Tijdschrift voor Entomologie', 6],
    ['Transactions of the Entomological Society of London', 6],
    ['Wiener Entomologische Monatschrift', 6],
    ['Zoologische Mededeelingen Leiden', 4],
    ['Zootaxa', 184],
    ['Other (16)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=340)',
    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);