function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Calabon, Mark S. & Jones, E. B. Gareth & Pang, Ka-Lai', 1],
    ['Chen, Ya-Ya & Dissanayake, Asha J. & Liu, Jian-Kui', 1],
    ['Ganeshalingam, Archchana & Daranagama, Dinushani A.', 1],
    ['Lee, Seung-Yeol & Ten, Leonid N. & Ayim, Benjamin Yaw', 1],
    ['Li, Wen-Li & Liang, Rui-Ru & Dissanayake, Asha J.', 13],
    ['Lin, Lu & Bai, Yukun & Pan, Meng & Tian, Chengming & Fan, Xinlei', 5],
    ['Ma, Xiao-Ya & Hyde, Kevin D. & Phillips, Alan J. L.', 2],
    ['Mehmood, Nasir & Yuan, Yuan & Ali, Mohammed & Ali, Muhammad', 1],
    ['Pereira, Diana S. & Phillips, Alan J. L.', 15],
    ['Piesik, Dariusz & Lemanczyk, Grzegorz & Bocianowski, Jan', 2],
    ['Rathnayaka, Achala R. & Chethana, K. W. Thilini', 5],
    ['Sun, Jing-E & Meng, Chao-Rong & Phillips, Alan J. L.', 2],
    ['Tibpromma, Saowaluck & Hyde, Kevin D. & Bhat, Jayarama D.', 2],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 4],
    ['Wu, Na & Dissanayake, Asha J. & Chethana, K. W. Thilini', 3],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);