function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Venezuelica', 13],
    ['Annales Societe Entomologique France', 13],
    ['Biodiversity Data Journal', 67],
    ['Miscellanea Zoologica Sumatrana', 29],
    ['Mémoires du Muséum national d\'Histoire naturelle', 20],
    ['New Zealand journal of zoology', 10],
    ['Odonatologica', 14],
    ['Oriental Insects', 9],
    ['Proceedings of the Royal Entomological Society of London', 9],
    ['Systematic Entomology', 72],
    ['The Ohio Journal of Science', 15],
    ['Transactions of the Entomological Society of London', 14],
    ['Treubia', 12],
    ['ZooKeys', 11],
    ['Zootaxa', 324],
    ['Other (21)', 42]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=674)',
    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);