function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Banyal, Harinder Singh & Kumar, Sanjeev', 1],
    ['Batuwita, Sudesh & Maduwage, Kalana & Sudasinghe, Hiranya', 1],
    ['Dishma, Mayanglambam & Vishwanath, Waikhom', 1],
    ['Hui, Tan Heok & Peng, Kelvin Lim Kok & Huan, Liew Jia', 1],
    ['Katwate, Unmesh & Baby, Fibin & Raghavan, Rajeev', 1],
    ['Katwate, Unmesh & Katwate, Chetana & Raghavan, Rajeev', 1],
    ['Katwate, Unmesh & Kumkar, Pradeep & Raghavan, Rajeev', 1],
    ['Katwate, Unmesh & Paingankar, Mandar S. & Raghavan, Rajeev', 1],
    ['Katwate, Unmesh & Raghavan, Rajeev & Dahanukar, Neelesh', 1],
    ['Marcus Knight, J. D.', 3],
    ['Marcus Knight, J. D. & Laltlanhlua, Zathang', 1],
    ['Praveenraj, Jayasimhan & Knight, John Daniel Marcus', 1],
    ['Shangningam, Bungdon & Vishwanath, Waikhom', 18],
    ['Çiçek, Erdoğan & Fricke, Ronald & Eagderi, Soheil', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);