function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 6],
    ['Annals of Natural History; or, Magazine of Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany and Zoo', 1],
    ['Arthropod fauna of the UAE', 1],
    ['Australian Journal of Entomology', 4],
    ['Biodiversity Data Journal', 4],
    ['European Journal of Taxonomy', 12],
    ['Far Eastern Entomologist', 1],
    ['Historical Biology', 1],
    ['JOURNAL, BOMBAY NATURAL HISTORY SOCIETY', 1],
    ['Journal of Natural History', 17],
    ['Peckhamia', 3],
    ['Raffles Bulletin of Zoology', 1],
    ['UPLB Museum Publications in Natural History', 1],
    ['ZooKeys', 7],
    ['Zootaxa', 40],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=101)',
    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);