function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano', 1],
    ['Biol. Results " Endeavour "', 2],
    ['Copeia', 1],
    ['E. J. Brill', 1],
    ['European Journal of Taxonomy', 4],
    ['Ichthyological Research', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 1],
    ['Journal of the Shimonoseki University of Fisheries', 1],
    ['Marine Investigations in South Africa', 1],
    ['Maruzen Kobushiki Kaisha', 1],
    ['Papers and proceedings of the Royal Society of Tasmania', 1],
    ['Proc. R. Soc. Tasmania', 1],
    ['Report on the Scientific Results of the Voyage of H. M. S. “ Challenger ” during the Years 1873 - 76 under the Command of Captai', 1],
    ['Senckenbergiana Maritima', 2],
    ['Zootaxa', 24],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=45)',
    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);