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 ', 3],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Contributions in Science of the Natural History Museum of Los Angeles County', 5],
    ['Copeia', 1],
    ['Dana Reports', 4],
    ['European Journal of Taxonomy', 2],
    ['Neotropical Ichthyology', 5],
    ['Proceedings of the Royal Irish Academy, Section B., Biological, Geological, and Chemical Science', 1],
    ['Zoologica', 1],
    ['Zootaxa', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);