function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 154],
    ['European Journal of Taxonomy', 478],
    ['Fauna of New Zealand', 67],
    ['Indira Publishing House', 17],
    ['International journal of acarology', 39],
    ['Journal of Natural History', 62],
    ['Linzer biologische Beiträge', 22],
    ['Persian Journal of Acarology', 126],
    ['Proceedings of the Entomological Society of Washington', 22],
    ['Systematic & Applied Acarology', 13],
    ['Transactions of the Royal Society of New Zealand', 12],
    ['Veröffentlichungen des Instituts für Meeresforschung Bremerhaven', 77],
    ['ZooKeys', 33],
    ['Zoological Systematics', 12],
    ['Zootaxa', 3580],
    ['Other (99)', 235]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=4949)',
    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);