function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 4],
    ['Belgian Journal of Entomology', 16],
    ['Biodiversity Data Journal', 6],
    ['Bulletin of the American Museum of Natural History', 4],
    ['Deutsche Entomologische Zeitschrift', 4],
    ['European Journal of Taxonomy', 51],
    ['Far Eastern Entomologist', 19],
    ['Faunitaxys', 15],
    ['Insecta Mundi', 22],
    ['ZooKeys', 42],
    ['Zoological Journal of the Linnean Society', 12],
    ['Zoological Systematics', 53],
    ['Zoologischer Anzeiger', 30],
    ['Zoosystema', 310],
    ['Zootaxa', 1385],
    ['Other (19)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1997)',
    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);