function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Christian Friderik Holm', 1],
    ['J. White', 1],
    ['Johan. Christi. Trappii', 1],
    ['Journal of the Academy of Natural Sciences of Philadelphia', 1],
    ['K. K. Hof-naturalien-cabinet', 1],
    ['Laurentius Salvius', 62],
    ['Mémoires du Muséum national d\'Histoire naturelle', 3],
    ['ZooKeys', 1],
    ['Zoosystema', 1],
    ['Zootaxa', 12],
    ['[G. Remondini e fl.]', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=85)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);