function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ann. Univ. Lyon', 1],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College', 1],
    ['Cybium', 2],
    ['Discovery Reports', 1],
    ['European Journal of Taxonomy', 5],
    ['Memoirs of the Carnegie Museum', 1],
    ['Memoirs of the Indian Museum', 2],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Rev. Biol. Mar. Montemar', 1],
    ['Scientific Results of the M. Sars North Atlantic Deep-Sea Expedition 1910', 2],
    ['The Journal of the College of Science, Imperial University of Tokyo', 1],
    ['Voprosy Ikhtiologii', 2],
    ['Zootaxa', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);