function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Copeia', 3],
    ['Japanese Journal of Zoology', 1],
    ['Journal of the Andaman Science Association.', 1],
    ['Monogr. Bur. Sci. Manila', 1],
    ['Notes from the Leyden Museum', 1],
    ['Records of the Zoological Survey of India', 1],
    ['Verslagen en Mededeelingen der Koninklijke Akademie van Wetenschappen. Afdeeling Natuurkunde', 1],
    ['Zoologische Mededelingen, Leiden', 1],
    ['Zootaxa', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);