function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Annuario del Museo Zoologico della Università di Napoli', 1],
    ['Archives de Zoologie Expérimentale et Générale: Hitorire Naturelle, Morphologie, Histologie, Évolution des Animaux', 1],
    ['Cybium', 2],
    ['European Journal of Taxonomy', 5],
    ['Fish. Mar. Biol. Surv., Union S. Afr. Rep. no. 3, for 1922', 2],
    ['Fish. Newsletter, Aust.', 1],
    ['Japanese Journal of Ichthyology', 1],
    ['Journal of the Washington Academy of Sciences', 1],
    ['Maurolico, Messina', 1],
    ['Proc. R. Soc. Tasmania', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Proceedings of the Zoological Society of London, B', 2],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 2],
    ['Zootaxa', 13],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=42)',
    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);