function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amurian Zoological Journal', 196],
    ['Annales de la Société Scientifique de Bruxelles. Memoires', 86],
    ['Biodiversity Data Journal', 42],
    ['Bishop Museum Occasional Papers', 55],
    ['Caucasian Entomological Bulletin', 44],
    ['Entomo Helvetica', 88],
    ['European Journal of Taxonomy', 155],
    ['Far Eastern Entomologist', 130],
    ['Journal of Natural History', 161],
    ['Raffles Bulletin of Zoology', 67],
    ['Schulz-Wundermann', 53],
    ['ZooKeys', 174],
    ['Zoological Journal of the Linnean Society', 22],
    ['Zoosystematica Rossica', 42],
    ['Zootaxa', 1506],
    ['Other (55)', 247]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3068)',
    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);