function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 1],
    ['Benjamin White and Son', 6],
    ['Bulletin of the American Museum of Natural History', 1],
    ['European Journal of Taxonomy', 80],
    ['Journal of Natural History', 27],
    ['Laurentius Salvius', 45],
    ['Memoirs of Museum Victoria', 1],
    ['Papéis Avulsos de Zoologia', 1],
    ['Poisson', 2],
    ['Polar biology', 1],
    ['Proceedings of the Biological Society of Washington', 1],
    ['Revue suisse de Zoologie', 33],
    ['Zootaxa', 405]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=604)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);