function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de la Sociedad Española de Historia Natural', 1],
    ['Annals of the Durban Museum', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the Misaki Marine Biological Institute Kyoto University', 2],
    ['Bulletin of the United States Fish Commission', 2],
    ['Copeia', 1],
    ['Ichthyological Research', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 1],
    ['Mémoires du Muséum National d’Histoire Naturelle, Série A, Zoologie', 3],
    ['New Zealand journal of marine and freshwater research', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Report on the Scientific Results of the Voyage of H. M. S. “ Challenger ” during the Years 1873 - 76 under the Command of Captai', 3],
    ['Videnskabelige Meddelelser frå Dansk Naturhistorisk Forening', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);