function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cipola, Nikolas Gioia', 1],
    ['Marín, Elida P. & Palacios-Vargas, José G.', 2],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 5],
    ['Nguyen, Anh T. T. & Thuy, Kim N. & Arbea, Javier I.', 4],
    ['Ospina-Sanchez, Claudia Marcela & Soto-Adames, Felipe N', 3],
    ['Panina, Kseniya & Babenko, Anatoly & Potapov, Mikhail', 2],
    ['Papac, Vladimir & Palacios-Vargas, Jose G.', 2],
    ['Schneider, Clement & Porco, David & Deharveng, Louis', 2],
    ['Schneider, Clément', 1],
    ['Schneider, Clément & Deharveng, Louis', 2],
    ['Schneider, Clément & Minor, Maria A. & D’Haese, Cyrille A.', 5],
    ['Schneider, Clément & Panina, Ksenia', 4],
    ['Seminario-Córdova, Renzo A. & Baquero, Enrique & Jordana, Rafael', 1],
    ['Thibaud, Jean-Marc', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);