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 ', 5],
    ['Biodiversity Data Journal', 12],
    ['Far Eastern Entomologist', 59],
    ['Fauna of New Zealand', 29],
    ['Insects of Guam I', 13],
    ['Journal of Natural History', 69],
    ['Proceedings of the Biological Society of Washington', 2],
    ['Proceedings of the Hawaiian Entomological Society', 10],
    ['Proceedings of the Japanese Society of Systematic Zoology', 2],
    ['Proceedings of the Royal Entomological Society of London, Series B, Taxonomy', 4],
    ['Species Diversity', 4],
    ['Vestnik Zoologii', 2],
    ['ZooKeys', 147],
    ['Zoological Systematics', 101],
    ['Zootaxa', 1216],
    ['Other (19)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1694)',
    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);