function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales du Musée Royal du Congo Belge, Série 8, Zoologiques', 1],
    ['Annales du Musée du Congo Belge, Série 1, Zoologiques', 5],
    ['Anzeiger', 1],
    ['Aquarien und Terrarien Zeitschrift', 1],
    ['Bulletin de la Société Zoologique de France', 4],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 4, Section A, Zoologie, Biologie et Écologie d’Animal', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Copeia', 6],
    ['Ichthyologica, the Aquarium Journal', 2],
    ['J. L. B. Smith Institute of Ichthyology Special Publication', 2],
    ['Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten', 1],
    ['Mémoires du Muséum national d\'Histoire naturelle', 3],
    ['Proceedings of the California Academy of Sciences, Series 4', 5],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Zootaxa', 25],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=67)',
    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);