function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allattani Küzlem. Budapest', 2],
    ['Anzeiger', 2],
    ['Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano', 3],
    ['Bulletin of the American Museum of Natural History', 8],
    ['Bulletin of the Southern California Academy of Sciences', 4],
    ['Copeia', 11],
    ['Cybium', 4],
    ['Geodiversitas', 3],
    ['Journal of Natural History', 8],
    ['Notulae Naturae', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 3],
    ['Proceedings of the Zoological Society of London, B', 6],
    ['Rev. Fac. Sci. Univ. Istanbul, B', 5],
    ['Turkish Journal of Zoology', 4],
    ['Zootaxa', 47],
    ['Other (27)', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=148)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);