function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Bulletin of the United States Fish Commission', 1],
    ['Cah. Indo-Pacif.', 1],
    ['European Journal of Taxonomy', 1],
    ['Japanese Journal of Ichthyology', 1],
    ['Japanese Journal of Zoology', 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', 1],
    ['Reports of the Usa Marine Biological Station', 1],
    ['Résultats Scientifiques de la Expédition Océanographique Belge dans les Eaux Côtieres Africaines de l\'Atlantique Sud (1948 - 194', 1],
    ['Sci. Reports, John Murray Exped.', 1],
    ['Special Bulletin of the United States National Museum', 1],
    ['Zoologicheskii Zhurnal', 2],
    ['Zootaxa', 6],
    ['“ Meteor ” Forschungsergebnisse, D', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=22)',
    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);