function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 4],
    ['European Journal of Taxonomy', 6],
    ['Heineck et Faber', 5],
    ['Journal of molluscan studies', 1],
    ['K. K. Hof-naturalien-cabinet', 1],
    ['Kongelige Norske Videnskabers Selskabs Skrifter', 2],
    ['Laurentius Salvius', 48],
    ['Millan, B. White, Elmsley & Robson', 2],
    ['Quarterly Journal of the Geological Society, London', 1],
    ['Ruthenica, Russian Malacological Journal', 2],
    ['The Bulletin of the Russian Far East Malacological Society', 2],
    ['Transactions of the geological society of London, 2', 2],
    ['ZooKeys', 4],
    ['Zootaxa', 5],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=87)',
    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);