function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Sinica', 1],
    ['Bol. Inst. Paul. Oceanogr.', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the Bingham Oceanographic Collection Yale University', 4],
    ['Contri. Cientificas', 1],
    ['Copeia', 2],
    ['Journal of the Washington Academy of Sciences', 1],
    ['Physis', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 6],
    ['Proceedings of the Biological Society of Washington', 1],
    ['Proceedings of the Royal Society of Queensland', 1],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Publications of the Field Museum of Natural History, Zoölogical', 5],
    ['Zoologica', 1],
    ['Zootaxa', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=35)',
    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);