function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 3],
    ['Biodiversity Data Journal', 165],
    ['Bollettino del Laboratorio di Zoologia Generale ed Agraria del R. Scuola d\'Agricultura di Portici', 1],
    ['Hawaii Agricultural Experiment Station Report', 1],
    ['Insects of Guam II', 1],
    ['Journal of Natural History', 11],
    ['Linzer biologische Beiträge', 10],
    ['Proceedings of the Entomological Society of Washington', 1],
    ['Proceedings of the Hawaiian Entomological Society', 1],
    ['Proceedings of the Royal Entomological Society of London, Series B, Taxonomy', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Zootaxa', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=199)',
    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);