function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ballière', 9],
    ['Biodiversity Data Journal', 30],
    ['Check List', 2],
    ['Entomological news', 1],
    ['Insects of Guam II', 1],
    ['Journal of Hymenoptera Research', 8],
    ['Journal of Natural History', 8],
    ['Proceedings of the Hawaiian Entomological Society', 2],
    ['Turkish Journal of Zoology', 9],
    ['U S Dep Agr Rep', 1],
    ['Zootaxa', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);