function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Absalão, Ricardo S. & Pimenta, Alexandre D.', 4],
    ['Antunes, Luís Vítor Oliveira & Figueira, Raquel', 3],
    ['Bozzetti, L', 1],
    ['Hansen, Thomas', 2],
    ['Kantor, Yuri I. & Castelin, Magalie & Fedosov, Alexander', 17],
    ['Kiel, Steffen & Sami, Marco & Taviani, Marco', 2],
    ['Lamarck, J. B. P. A. de M. de', 2],
    ['Leal, José H.', 1],
    ['Nielsen, Sven N.', 1],
    ['O, Va L E R I A T E S & Pastorino, Guido', 9],
    ['Pacaud, Jean-Michel', 1],
    ['Pease, W. H.', 1],
    ['Poppe, Guido & Tagaro, Sheila & Goto, Yoshihiro', 1],
    ['Sargent, D. M. & Petuch, E.', 2],
    ['de Lamarck, Jean-Baptiste Pierre Antoine de Monet', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);