function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chergui, Isslam & Satour, Abdellatif & Bouzid, Abdelhakim', 2],
    ['Masi, Marco & Lecce, Roberta Di & Calice, Umberto', 1],
    ['Meyer, Stephanie & Araujo, Thiago Q. & Walsh, Elizabeth J.', 1],
    ['Padhye, Sameer M. & Lazo-Wasem, Eric A.', 1],
    ['Rogers, D. Christopher & Cruz-Rivera, Edwin', 1],
    ['Rogers, D. Christopher & Hill, Matthew A.', 2],
    ['Timms, Brian V & Hudson, Peter', 1],
    ['Zheng, Bo & Sun, Shi-chun', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    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);