function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Journal of Science', 1],
    ['American Museum Novitates', 1],
    ['Bulletin of the American Museum of Natural History', 2],
    ['Contributions to Geology, University of Wyoming', 1],
    ['Fossil Record', 15],
    ['Journal of Vertebrate Paleontology', 1],
    ['Mesozoic and Cenozoic Red Beds of South China: Selected Papers from the " Cretaceous-Tertiary Workshop ", Institute of Vertebrat', 1],
    ['Palaeontologica Sinica, Series C', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 4],
    ['Proceedings of the Royal Society, Series B', 1],
    ['Rocky Mountain Geology', 3],
    ['The Ottawa Naturalist', 1],
    ['Transactions of the American Philosophical Society', 2],
    ['Zoological Journal of the Linnean Society', 15],
    ['Zootaxa', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=56)',
    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);