function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['BIOGEOGRAPHIA-Lav. Soc. ital. Biogeoqr. N. S.', 16],
    ['Biodiversity Data Journal', 12],
    ['Check List', 3],
    ['European Journal of Taxonomy', 2],
    ['Insecta Mundi', 27],
    ['International Journal of Myriapodology', 70],
    ['Journal of Natural History', 29],
    ['Laurentius Salvius', 10],
    ['Pan-Pac Ent', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 19],
    ['Revue suisse de Zoologie', 29],
    ['ZooKeys', 74],
    ['Zootaxa', 521],
    ['Other (14)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=839)',
    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);