function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Buldrini, Fabrizio & Gentilini, Matteo & Bruni, Cinzia', 1],
    ['Doweld, Alexander B.', 2],
    ['Info Flora', 9],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 8],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 6],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 1],
    ['MONRO, A. K. & SANTAMARÍA-AGUILAR, D. & GONZÁLEZ, F.', 1],
    ['Moura, Mónica & Carine, Mark A. & Malécot, Valéry', 2],
    ['Peruzzi, Lorenzo & Galasso, Gabriele & Domina, Gianniantonio', 1],
    ['Rahman, A. U. & Ullah, Z. & Qureshi, R. & Burslem, D. F. R. P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);