function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['BIOGEOGRAPHIA-Lav. Soc. ital. Biogeoqr. N. S.', 86],
    ['Berliner ent Zeit', 38],
    ['Biodiversity Data Journal', 87],
    ['Caucasiana', 59],
    ['Far Eastern Entomologist', 36],
    ['Insecta Mundi', 44],
    ['International Journal of Myriapodology', 138],
    ['Journal of Natural History', 67],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 19],
    ['Revue suisse de Zoologie', 49],
    ['ZooKeys', 197],
    ['Zoological Journal of the Linnean Society', 16],
    ['Zoosystema', 39],
    ['Zoosystematics and Evolution', 17],
    ['Zootaxa', 1342],
    ['Other (93)', 281]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2515)',
    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);