function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Scientarium Naturalium Universitatis Nan Kaiensis', 1],
    ['Annales de Parasitologie Humaine et Comparée', 1],
    ['Archives de Parasitologie', 2],
    ['Biologiya Morya, Kiev', 1],
    ['Canadian Journal of Fisheries and Aquatic Sciences [Journal Canadien des Sciences Halieutiques et Aquatiques]', 1],
    ['Ekologiya Morya', 1],
    ['Japanese Journal of Zoology', 13],
    ['Keigaku Publishing Company', 10],
    ['Proceedings of the Indian Academy of Sciences, Section B', 1],
    ['Revista Mexicana de Biodiversidad', 1],
    ['Rivista di Parassitologia', 4],
    ['Résultats des Campagnes Scientifiques du Albert Ier, Prince Monaco', 2],
    ['Transactions of the American Microscopical Society', 1],
    ['ZooKeys', 1],
    ['Zoologischer Anzeiger', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=41)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);