function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cuccodoro, Giulio', 11],
    ['Cuccodoro, Giulio & Liu, Zhiping', 6],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H.', 1],
    ['Japoshvili, George & Khachikov, Eduard', 1],
    ['Liu, Zhiping & Cuccodoro, Giulio', 7],
    ['López-García, Margarita M. & Méndez-Rojas, Diana M.', 1],
    ['Pérez, Luis & Rodríguez, Maryzender & Asenjo, Angélico', 2],
    ['Rodríguez, William David & Navarrete-Heredia, José L.', 2],
    ['Rodríguez, William David & Navarrete-Heredia, José Luis', 1],
    ['Stephens, James Francis', 1],
    ['Zhang, Shan & Cuccodoro, Giulio & Chen, Li & Liu, Zhiping', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);