function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 2],
    ['Arthropoda Selecta', 5],
    ['Biodiversity Data Journal', 21],
    ['Caucasiana', 1],
    ['Far Eastern Entomologist', 1],
    ['Forest Spiders of South East Asia With a revision of the sac and ground spiders- Family Liocranidae', 15],
    ['Journal of Natural History', 4],
    ['Riceland Spiders of South and Southeast Asia', 2],
    ['ZooKeys', 33],
    ['Zoological Systematics', 22],
    ['Zootaxa', 133]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=239)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);