function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adams, Henry & Adams, Arthur', 1],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 1],
    ['Araya, Juan Francisco & Catalan, Ricardo', 4],
    ['Atzner', 1],
    ['Beebe, W. & Tee-Van, J.', 1],
    ['Cowie, Robert H. & Héros, Virginie & Yeung, Norine W.', 1],
    ['Frank, Christa', 3],
    ['Jochum, Adrienne & Bochud, Estee & Haberthuer, David', 2],
    ['Jochum, Adrienne & Michalik, Peter & Inäbnit, Thomas', 15],
    ['Jochum, Adrienne & Prozorova, Larisa & Sharyi-ool, Mariana', 2],
    ['Jochum, Adrienne & Slapnik, Rajko & Klussmann-Kolb, Annette', 2],
    ['Jochum, Adrienne & de Winter, Anton J. & Weigand, Alexander M.', 2],
    ['Pease, W. H.', 3],
    ['Röding, Peter Friedrich', 5],
    ['Zvonareva, Sofya & Kantor, Yuri', 5],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);