function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals of the Entomological Society of America', 2],
    ['British Museum (Natural History)', 1],
    ['Bulletin of Entomological Research', 1],
    ['Bulletin of entomological research', 1],
    ['Contr Ent Int', 3],
    ['Fauna of New Zealand', 1],
    ['Hilgardia', 1],
    ['Insecta Mundi', 65],
    ['Insects of Guam II', 7],
    ['Proceedings of the Entomological Society of Washington', 1],
    ['Proceedings of the Hawaiian Entomological Society', 9],
    ['Records of the Western Australian Museum', 1],
    ['ZooKeys', 7],
    ['Zoosystema', 5],
    ['Zootaxa', 31],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=137)',
    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);