function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 5],
    ['Allertonia', 1],
    ['Biodiversity Data Journal', 25],
    ['Blumea - Biodiversity, Evolution and Biogeography of Plants', 32],
    ['Check List', 6],
    ['Flora Helvetica', 3],
    ['Flora Malesiana, Series 2', 39],
    ['Info Flora Schweiz', 3],
    ['Kew Bulletin', 3],
    ['Nova genera et species plantarum: quas in peregrinatione ad plagam aequinoctialem orbis novi collegerunt (Quarto Ed.)', 1],
    ['Novon, A Journal for Botanical Nomenclature', 4],
    ['Occasional Papers of the Bernice P. Bishop Museum', 1],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 13],
    ['PhytoKeys', 292],
    ['Phytotaxa', 45],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=476)',
    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);