function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Breure, Abraham S. H.', 2],
    ['Breure, Abraham S. H. & Ablett, Jonathan D.', 35],
    ['Breure, Abraham S. H. & Whisson, Corey S.', 1],
    ['Cieplok, Anna & Anderson, Roy & Gawlak, Magdalena', 1],
    ['Gloeer, Peter & Pesic, Vladimir', 33],
    ['Harzhauser, Mathias & Mandic, Oleg & Neubauer, Thomas A.', 1],
    ['Iredale, Tom', 1],
    ['Jochum, Adrienne & E. Prieto, Carlos & Kampschulte, Marian', 3],
    ['Rafinesque, Constantine Samuel', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);