function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarina. Russian Journal of Acarology', 1],
    ['Acarologia', 64],
    ['Acarological Studies', 32],
    ['European Journal of Taxonomy', 3],
    ['Fauna of New Zealand', 16],
    ['International Journal of Acarology', 1],
    ['International journal of acarology', 11],
    ['Journal of Natural History', 22],
    ['Persian Journal of Acarology', 25],
    ['Persian journal of acarology', 1],
    ['Phytophylactica', 1],
    ['Proceedings of the Entomological Society of Washington', 1],
    ['Systematic & applied acarology', 2],
    ['Veröffentlichungen des Instituts für Meeresforschung Bremerhaven', 11],
    ['Zootaxa', 193],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=388)',
    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);