function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asiatic Researches', 1],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 3],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Madras Journal of Literature and Science', 1],
    ['Natural History Bulletin of the Siam Society', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Raffles Bulletin of Zoology', 3],
    ['Vishwavidyalaya Prakashan', 1],
    ['Zootaxa', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);