function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Venezuelica', 1],
    ['American Museum Novitates', 1],
    ['Annales du Musee Royale de l\'Afrique Centrale, Zoologie, Serie 8', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 5],
    ['Annals of the Entomological Society of America', 1],
    ['Boletim do Museu Nacional Rio de Janeiro, Zoologia', 2],
    ['Bulletin of the Institute of Jamaica, Science Series', 1],
    ['Canadian Entomologist', 1],
    ['Eos, Madrid', 3],
    ['Mémoires du Muséum National d’Histoire Naturelle', 4],
    ['Privately published', 1],
    ['Proceedings of the Linnean Society of New South Wales', 1],
    ['Természetrajzi Füzetek', 2],
    ['Zoologischer Anzeiger', 5],
    ['Zootaxa', 5],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=35)',
    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);