function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 8],
    ['Biodiversity Data Journal', 12],
    ['Bulletin of the American Museum of Natural History', 63],
    ['European Journal of Taxonomy', 8],
    ['Fauna of West Bengal Part 3 (Arachnida and acari)', 9],
    ['Forest Spiders of South East Asia With a revision of the sac and ground spiders- Family Liocranidae (Oedignatha)', 6],
    ['Journal of Natural History', 11],
    ['Revue Suisse De Zoologie', 6],
    ['Revue suisse de Zoologie', 12],
    ['ZooKeys', 66],
    ['Zoological Journal of the Linnean Society', 42],
    ['Zoological Systematics', 7],
    ['Zoosystema', 7],
    ['Zoosystematics and Evolution', 7],
    ['Zootaxa', 356],
    ['Other (15)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=652)',
    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);