function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 63],
    ['Adansonia', 47],
    ['Biodiversity Data Journal', 319],
    ['Botanica Marina', 56],
    ['Check List', 34],
    ['Cryptogamie, Mycologie', 489],
    ['European Journal of Taxonomy', 279],
    ['Insecta Mundi', 150],
    ['Linzer biologische Beiträge', 66],
    ['MycoKeys', 1565],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 103],
    ['Phytotaxa', 1750],
    ['ZooKeys', 52],
    ['Zoosystema', 84],
    ['Zootaxa', 246],
    ['Other (75)', 330]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=5633)',
    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);