function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Contr. Biol. Lab. Sci. Soc. China, Zool. Ser.', 1],
    ['Ichthyological Exploration of Freshwaters', 1],
    ['Japanese Journal of Zoology', 1],
    ['Journal of Chosen Natural History Society', 1],
    ['Korean Journal Ichthyol.', 1],
    ['Korean Journal Syst. Zool.', 1],
    ['Korean Jurnal of Biological Sciences', 1],
    ['Memoirs of the Carnegie Museum', 2],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Sinensia', 1],
    ['Zoological Science', 1],
    ['Zootaxa', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);