function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bronner', 1],
    ['Bulletin of Marine Science', 1],
    ['Bulletin of the United States Fish Commission', 2],
    ['European Journal of Taxonomy', 1],
    ['F. S. Hübschmann, Monachii [= Munich] & Fleischer, Lipsiae [= Leipzig]', 1],
    ['Journal of Natural History', 1],
    ['Memoirs of the Carnegie Museum', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Raffles Bulletin of Zoology', 1],
    ['Repertorio Fisico-Natural de la Isla de Cuba', 1],
    ['Report of the British Association for the Advancement of Science', 1],
    ['Revue française d\'Aquariologie Herpétologie', 2],
    ['Zootaxa', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=21)',
    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);