function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 181],
    ['Australian Systematic Botany', 36],
    ['Biodiversity Data Journal', 35],
    ['Blumea - Biodiversity, Evolution and Biogeography of Plants', 16],
    ['Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie.', 52],
    ['Candollea', 32],
    ['European Journal of Taxonomy', 45],
    ['Insecta Mundi', 107],
    ['Laurentius Salvius', 53],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 80],
    ['PhytoKeys', 67],
    ['Phytochemistry', 10],
    ['Phytotaxa', 232],
    ['Zoosystema', 10],
    ['Zootaxa', 104],
    ['Other (41)', 107]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1167)',
    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);