function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 17],
    ['Acarological Studies', 1],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 1],
    ['Atti della Società Veneto-Trentina di Scienze Naturali in Padova', 1],
    ['Biodiversity Data Journal', 2],
    ['Conilon coffee - The Coffea canephora produced in Brazil', 1],
    ['Florida entomologist', 1],
    ['International journal of acarology', 10],
    ['Journal N Y Ent Soc', 1],
    ['Persian Journal of Acarology', 3],
    ['Proceedings of the Entomological Society of Washington', 2],
    ['Systematic & Applied Acarology', 5],
    ['Veröffentlichungen des Instituts für Meeresforschung Bremerhaven', 4],
    ['ZooKeys', 3],
    ['Zootaxa', 184],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=240)',
    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);