function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zootaxonomica Sinica', 1],
    ['Annals of the Carnegie Museum', 1],
    ['Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano', 1],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Bulletin of Marine Science', 2],
    ['Bulletin of the American Museum of Natural History', 1],
    ['European Journal of Taxonomy', 3],
    ['Proceedings of the California Academy of Sciences, Series 2', 1],
    ['Rep. Lab. Fish. Biol. Taiwan', 1],
    ['Sanfilippo', 2],
    ['Zoodiversity', 1],
    ['Zootaxa', 40]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=55)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);