function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Actes de la Société Linnéenne de Bordeaux', 1],
    ['American Museum Novitates', 18],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Annals of the Entomological Society of America', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Entomologica Americana', 1],
    ['European Journal of Taxonomy', 22],
    ['Journal of Entomology and Zoology', 1],
    ['Journal of the Elisha Mitchell Scientific Society', 1],
    ['Systematic Biology', 3],
    ['Tethys Entomological Research', 1],
    ['ZooKeys', 6],
    ['Zootaxa', 34]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=91)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);