function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhise, M. R. & Patil, C. R. & Salunkhe, C. B.', 1],
    ['Gray, John Edward', 1],
    ['Hayashi, Ryoji', 2],
    ['Hosagoudar, V. B. & Riju, M. C.', 2],
    ['Hosagoudar, V. B. & Robin, P. J. & Shivaraju, B.', 3],
    ['Hosagoudar, V. B. & Sabeena, A.', 2],
    ['Hosagoudar, V. B. & Sabeena, A. & Riju, M. C.', 1],
    ['Jangoux, Michel', 8],
    ['Madeira, Patrícia & Kroh, Andreas & Cordeiro, Ricardo', 1],
    ['O\'Loughlin, P. Mark', 2],
    ['O’Loughlin, P. Mark & Waters, Jonathan M.', 3],
    ['Rowe, Frank & Richmond, Matthew', 2],
    ['Sabeena, Aliyarukunju & Biju, Haridas', 1],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    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);