function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 34],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 7],
    ['Australian Journal of Zoology', 10],
    ['Ballière', 7],
    ['Biodiversity Data Journal', 284],
    ['Deutsche Entomologische Zeitschrift', 21],
    ['Insecta Mundi', 12],
    ['Journal of Hymenoptera Research', 434],
    ['Journal of Natural History', 86],
    ['Linzer biologische Beiträge', 198],
    ['Proceedings of the Royal Society of Queensland', 9],
    ['Transactions of the Entomological Society of London', 14],
    ['ZooKeys', 511],
    ['Zoosystema', 11],
    ['Zootaxa', 299],
    ['Other (68)', 145]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2082)',
    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);