function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 6],
    ['Acta Musei Moraviae, Scientiae biologicae', 10],
    ['Biodiversity, Biogeography and Nature Conservation in WALLACEA and NEW GUINEA', 7],
    ['Fauna of New Zealand', 10],
    ['J. Insect Biodiversity', 21],
    ['Journal Of The Kansas Entomological Society', 3],
    ['Journal of Tropical Coleopterology', 2],
    ['Linzer biologische Beiträge', 19],
    ['Mitteilungen Der Schweizerischen Entomologischen Gesellschaft', 4],
    ['Revue suisse de Zoologie', 48],
    ['Vernate', 1],
    ['ZooKeys', 4],
    ['Zootaxa', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=147)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);