function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhatta, Gopalakrishna', 1],
    ['Gururaja, Kotambylu Vasudeva & Dinesh, K. P. & Priti, H.', 1],
    ['Krutha, Keerthi & Dahanukar, Neelesh & Molur, Sanjay', 1],
    ['Kumar, K. S. Pavan & Vishwajith, H. U. & Anisha, Anand', 1],
    ['Radhakrishnan, C. & Dinesh, K. P. & Ravichandran, M. S.', 2],
    ['Senevirathne, Gayani & Samarawickrama, V. A. M. P. K.', 1],
    ['Sonali Garg & Robin Suyesh & Sandeep Sukesan & Sd Biju', 7],
    ['Vijayakumar, Seenapuram Palaniswamy & Pyron, Robert Alexander', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);