function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 102],
    ['Bulletin of Entomological Research', 8],
    ['Contributions to Zoology', 1],
    ['Insectenboerse', 1],
    ['John Bale, Sons & Danielsson, Ltd.', 2],
    ['Journal Of The Washington Academy Of Sciences', 1],
    ['Journal of Natural History', 1],
    ['Proceedings of the Biological Society of Washington', 1],
    ['Wiedemann', 1],
    ['Zoological Journal of the Linnean Society', 2],
    ['Zoosystematica Rossica', 5],
    ['Zootaxa', 87]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=212)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);