function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta zoologica cracoviensia', 2],
    ['Annales Historico-Naturales Musei Nationalis Hungarici', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Biodiversity Data Journal', 10],
    ['Diptera Sveciae', 2],
    ['Entomo Helvetica', 4],
    ['Entomon', 14],
    ['Far Eastern Entomologist', 35],
    ['Felsecker', 2],
    ['Journal of Natural History', 26],
    ['Journal of the proceedings of the Linnean Society, Zoology', 3],
    ['Linzer biologische Beiträge', 19],
    ['Raffles Bulletin of Zoology', 3],
    ['ZooKeys', 145],
    ['Zootaxa', 396],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=677)',
    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);