function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berning, Björn', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 12],
    ['López De La Cuadra Car Los G Ar Cía Góm Ez, Los M.', 1],
    ['Ramalho, Laís V. & López-Fé, Carlos M. & Mateo-Ramírez, Angel', 1],
    ['Ramalho, Laís V. & Rodríguez-Aporta, Raquel & Gofas, Serge', 1],
    ['Reverter-Gil, Oscar & Souto, Javier & Novosel, Maja', 9],
    ['Souto, Javier & Berning, Björn & Ostrovsky, Andrew N.', 1],
    ['Souto, Javier & Reverter-Gil, Oscar & Ostrovsky, Andrew N.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);