function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 2],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 3],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 5],
    ['Bulletin of the Institute of Jamaica, Science Series', 4],
    ['Canadian Entomologist', 2],
    ['European Journal of Taxonomy', 7],
    ['Evolutionary Systematics', 3],
    ['Ezhegodnik Zoologicheskogo muzeia', 3],
    ['Journal of Arachnology', 2],
    ['Journal of Natural History', 10],
    ['Records of the Western Australian Museum', 3],
    ['Revue suisse de Zoologie', 3],
    ['Revue suisse de zoologie', 3],
    ['Transactions of the American Microscopical Society', 3],
    ['Zootaxa', 36],
    ['Other (18)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=110)',
    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);