function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akademiia Nauk SSSR, Trudy P. P. Shirshov Instytut Okeanologii', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 3],
    ['Bulletin de l\'Institut Océanographique de Monaco', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Comptes Rendus de l’Academie des Sciences de Moscow', 1],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 1],
    ['European Journal of Taxonomy', 3],
    ['Nuovi Annali di Scienzi Naturali di Bologna, Serie 1', 1],
    ['Proceedings of the Zoological Society of London, B', 1],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 1],
    ['Trans. N. Z. Inst.', 1],
    ['Zootaxa', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=18)',
    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);