function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Universitatis Lundensis', 8],
    ['Acta Zootaxonomica Sinica', 2],
    ['Agricultural Research Council, Government of Pakistan', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 2],
    ['Folha Medica Rio de Janeiro', 6],
    ['Japanese Journal of Zoology', 3],
    ['Journal of Parasitology', 2],
    ['Quarterly journal of microscopical science, n. s.', 2],
    ['Sumtibus Augusti Rücker', 5],
    ['Systematic Parasitology', 4],
    ['Transactions of the American Microscopical Society', 4],
    ['Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Thiere', 3],
    ['Zoologischer Anzeiger', 5],
    ['Zootaxa', 41],
    ['Other (20)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=109)',
    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);