function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 1],
    ['Annales de Limnologie - International Journal of Limnology', 2],
    ['Bijdragen tot de Dierkunde', 1],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 47],
    ['Journal of Natural History', 4],
    ['Memoirs of the Museum of Victoria', 2],
    ['Memoirs of the Queensland Museum', 4],
    ['Raffles Bulletin of Zoology', 2],
    ['Species Diversity', 2],
    ['VermEcology', 3],
    ['ZooKeys', 1],
    ['Zoological Science', 3],
    ['Zootaxa', 97],
    ['Труды Биолого-почвенного факультета ИГУ', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=171)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);