function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Breviora', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['European Journal of Taxonomy', 2],
    ['Fish. Mar. Biol. Surv., Union S. Afr. Rep. no. 3, for 1922', 1],
    ['Kongelige Danske Videnskabernes Selskab Skrifter, 5', 1],
    ['Memoirs of the Indian Museum', 1],
    ['Mémoires de la Société Imperial des Sciences Naturelles Cherbourg', 1],
    ['Notulae Naturae', 1],
    ['Philippine Journal of Science, Section D', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the Linnean Society of New South Wales', 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],
    ['United States Fish and Wildlife Service Research Report', 1],
    ['Zootaxa', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);