function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Annals of the Queensland Museum', 2],
    ['Anzeiger der Kaiserlichen Akademie der Wissenschaften. Mathemathisch-Naturwissenschaftliche Classe', 2],
    ['Australasian Journal of Herpetology', 4],
    ['Australian Journal of Herpetology', 2],
    ['Breviora', 2],
    ['Bulletin de la Société Géologique de France', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Chelonian Conservation and Biology', 3],
    ['Comptes rendus des séances de l’Académie des Sciences', 5],
    ['Geodiversitas', 8],
    ['Megataxa', 53],
    ['Proceedings of the Zoological Society of London', 2],
    ['Vertebrate Zoology', 3],
    ['Zootaxa', 24],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=122)',
    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);