function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Constant, Jerome & Mohan, Ashwini Venkatanarayana', 1],
    ['Constant, Jérôme', 6],
    ['Constant, Jérôme & Pham, Hong Thai', 5],
    ['Constant, Jérôme & Pham, Hong-Thai', 4],
    ['Jiaranaisakul, K. & Constant, J.', 5],
    ['Jiaranaisakul, Kawin & Constant, Jerome & Pinkaew, Nantasak', 16],
    ['Jiaranaisakul, Kawin & Voraphab, Itsarapong & Constant, Jérôme', 3],
    ['Porion, Thierry & Audibert, Cédric', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);