function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amazoniana', 1],
    ['Annalen des Naturhistorischen Museums in Wien', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Annals of the Natal Museum', 1],
    ['Arkiv för Zoologi', 1],
    ['Arthropoda', 1],
    ['Biodiversity Data Journal', 1],
    ['Bulletin of the Association for Mexican Cave Studies', 5],
    ['Canadian Entomologist', 1],
    ['Ciencia, Mexico City', 1],
    ['Journal of Arachnology', 11],
    ['Notes Biospéologiques', 2],
    ['Proceedings of the California Academy of Sciences, Series 4', 2],
    ['Revue suisse de zoologie', 14],
    ['Zootaxa', 8],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=58)',
    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);