function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Arachnologica', 8],
    ['American Museum Novitates', 9],
    ['Arachnologische Mitteilungen', 6],
    ['Arthropoda Selecta', 8],
    ['Biodiversity Data Journal', 25],
    ['Bulletin Di L\' Institut Royal Des Sciences Naturelles De Belgique Entomologie', 12],
    ['Caucasian Entomological Bulletin', 5],
    ['European Journal of Taxonomy', 33],
    ['Forest Spiders of South East Asia With a revision of the sac and ground spiders- Family Liocranidae', 44],
    ['Journal of Natural History', 51],
    ['The Journal of Arachnology', 6],
    ['ZooKeys', 21],
    ['Zoological Systematics', 9],
    ['Zoosystema', 10],
    ['Zootaxa', 113],
    ['Other (28)', 64]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=424)',
    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);