function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Joshi, Sunil & Gupta, Ankita & Shashank, P. R. & Pai, Sachin G.', 2],
    ['Joshi, Sunil & Jose, Bindu K. & Gullan, Penny & Sajeev, T. V.', 5],
    ['MOGHADDAM, MASUMEH & WATSON, GILLIAN W.', 1],
    ['Moghaddam, Masumeh', 3],
    ['Tanaka, Hirotaka', 3],
    ['Zhang, Jiang-Tao & Wu, San-An', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);