function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 55],
    ['Acarological Studies', 3],
    ['Bulletin of the Ohio Biological Survey', 1],
    ['Ecologica Montenegrina', 28],
    ['European Journal of Taxonomy', 5],
    ['Journal of Natural History', 3],
    ['Leaflets of Acadian Biology', 13],
    ['Proceedings of the Indiana Academy Science', 1],
    ['Sitzungsberichte der Naturforschenden Gesellschaft zu Leipzig', 1],
    ['Transactions of the American Microscopical Society', 6],
    ['Transactions of the Wisconsin Academy of Sciences Arts and Letters', 1],
    ['ZooKeys', 134],
    ['Zoological Journal of the Linnean Society', 4],
    ['Zoological Systematics', 5],
    ['Zootaxa', 283]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=543)',
    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);