function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annali del Museo Civico di Storia Naturale di Genova', 5],
    ['Atti V congr naz speleol.', 4],
    ['BIOGEOGRAPHIA-Lav. Soc. ital. Biogeoqr. N. S.', 30],
    ['Berliner ent Zeit', 38],
    ['Biodiversity Data Journal', 28],
    ['Caucasiana', 33],
    ['Far Eastern Entomologist', 11],
    ['International Journal of Myriapodology', 24],
    ['Journal of Natural History', 4],
    ['Naturhistorisk Tidsskrift, New Series', 3],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe, Wien', 8],
    ['Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien', 6],
    ['ZooKeys', 39],
    ['Zoosystema', 8],
    ['Zootaxa', 184],
    ['Other (25)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=457)',
    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);