function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales of Science, Cleveland, Ohio', 1],
    ['Anzeiger', 1],
    ['Arch. Mus. Lyon', 1],
    ['Arch. Zool. Anat. Fisiol., Genova, 2', 1],
    ['Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano', 1],
    ['Bulletin de la Société Impériale des Naturalistes de Moscou', 1],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 3],
    ['Eawag: Swiss Federal Institute of Aquatic Science and Technology', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Rev. Fac. Sci. Univ. Istanbul, B', 3],
    ['Turkish Journal of Zoology', 8],
    ['ZooKeys', 2],
    ['Zoosystematics and Evolution', 6],
    ['Zootaxa', 47],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=92)',
    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);