function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 2],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 3],
    ['Arratia, Gloria & Schultze, Hans-Peter & Tischlinger, Helmut', 2],
    ['Hansen, Thomas', 4],
    ['Herbert, David G.', 15],
    ['Hoffman, Leon & Freiwald, André & van Heugten, Bart', 2],
    ['Leal, José H.', 1],
    ['Luca, Javier Di & Zelaya, Diego G.', 4],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Negri, Mauro Pietro & Corselli, Cesare', 3],
    ['Ortega, José Rafael & Gofas, Serge', 12],
    ['Romani, L. & Bogi, C. & Bartolini, S.', 1],
    ['Rubio, F. & Fernández-Garcés, R. & Rolán, E.', 11],
    ['Rubio, F. & Rolán, E.', 3],
    ['Rubio, F. & Rolán, E. & Fernández-Garcés, R.', 20],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=85)',
    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);