function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Fischereiwissenschaft', 1],
    ['Cybium', 1],
    ['European Journal of Taxonomy', 5],
    ['Journal of Fish Biology', 3],
    ['Journal of the Washington Academy of Sciences', 1],
    ['Laurentius Salvius', 3],
    ['Memoirs of the Carnegie Museum', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Raffles Bulletin of Zoology', 1],
    ['Transactions of the American Philosophical Society', 1],
    ['Zootaxa', 54]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=73)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);