function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alf, A & Kreipl, K', 1],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 2],
    ['Bakker, Piet A. J. & Albano, Paolo G.', 3],
    ['Da Costa, Emanuel Mendes', 4],
    ['Hansen, Thomas', 2],
    ['Harzhauser, Mathias', 2],
    ['Helwerda, Renate Ariane & Wesselingh, Frank Pieter', 2],
    ['Herbert, David G.', 18],
    ['Kaim, Andrzej & Jenkins, Robert G. & Tanabe, Kazushige', 2],
    ['Ketwetsuriya, Chatchalerm & Karapunar, Baran', 2],
    ['Linnaeus, Carolus', 46],
    ['Low, Martyn E. Y. & Tan, Siong Kiat', 3],
    ['Moore, Charles', 5],
    ['Röding, Peter Friedrich', 5],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 4],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=114)',
    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);