function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Arachnologica', 2],
    ['BioFormosa', 1],
    ['Biodiversity Data Journal', 1],
    ['Entomon', 1],
    ['Fauna of West Bengal Part 3 (Arachnida and acari)', 3],
    ['Forest Spiders of South East Asia With a revision of the sac and ground spiders- Family Liocranidae (Oedignatha)', 6],
    ['JOURNAL, BOMBAY NATURAL HISTORY SOCIETY', 1],
    ['Phelsuma', 2],
    ['Raffles Bulletin of Zoology', 1],
    ['Riceland Spiders of South and Southeast Asia', 1],
    ['State Fauna Series 4 Fauna of Meghalaya Part 2', 2],
    ['ZooKeys', 3],
    ['Zoological Systematics', 2],
    ['Zoos\' Print Journal', 1],
    ['Zootaxa', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);