function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Algemeene Konst- en Letter-Bode', 2],
    ['Anales de la Universidad de Chile, Memorias Cientificas y Literarias', 1],
    ['Annals and Magazine of Natural History', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Arquivos do Museu Nacional Rio de Janeiro', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 2],
    ['Forhandlingar i Videnskabsselskabet i Kristiania', 1],
    ['Journal de Physique, de Chimie, d\'Histoire Naturelle et des Arts', 1],
    ['Journal of the Zoological Society of India', 1],
    ['Memoirs of the Carnegie Museum', 1],
    ['Memoirs of the Queensland Museum', 1],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Veit', 5],
    ['Videnskabelige Meddelelser frå Dansk Naturhistorisk Forening', 2],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=32)',
    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);