function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['BEUKEMA, WOUTER & DE POUS, PHILIP & DONAIRE-BARROSO, DAVID', 4],
    ['Bonnaterre, Pierre Joseph', 1],
    ['Dubois, Alain & Bour, Roger', 1],
    ['Duszynski, Donald W. & Bolek, Matthew G. & Upton, Steve J.', 1],
    ['Hernandez, Axel & Escoriza, Daniel', 1],
    ['Laurenti, Joseph Nicolas', 3],
    ['Macaluso, Loredana & Wencker, Lukardis C M & Castrovilli, Maria', 1],
    ['Miracle, Eulàlia Gassó & Van, Lars W. & Ostende, Den Hoek', 8],
    ['Vasilyan, Davit & Cernansky, Andrej & Szyndlar, Zbigniew', 1],
    ['Welter-Schultes, F. W. & Klug, R.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);