function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bundhun, Digvijayini & Jeewon, Rajesh & Senanayake, Indunil C.', 2],
    ['Dissanayake, Lakmali S. & Kang, Ji-Chuan', 1],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Goonasekara, Ishani D. & Jayawardena, Ruvishika S.', 3],
    ['Gu, Mo & Hu, Dong-Wei & Han, Bing & Jiang, Ning', 1],
    ['Hsu, Sheng-Yu & Xu, Yuan-Cheng & Lin, Yu-Chen & Chuang, Wei-Yu', 8],
    ['Huanaluek, Naruemon & Jayawardena, Ruvishika S.', 4],
    ['Jiang, Ning & Voglmayr, Hermann & Ma, Chun-Yan & Xue, Han', 5],
    ['Li, Hua & Manawasinghe, Ishara S. & Zhang, Yunxia', 2],
    ['Pintos, Angel & Alvarado, Pablo', 3],
    ['Song, Jia-Yu & Wu, Hai-Xia & Li, Jin-Chen & Ding, Wei-Feng', 3],
    ['Wang, Yifeng & Tsui, Kin-Ming & Chen, Shimei & You, Chongjuan', 5],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 4],
    ['Yang, Qi & He, Yu-Ke & Yuan, Jun & Wang, Yong', 2],
    ['Yang, Qi & Zeng, Xiang-Yu & Yuan, Jun & Zhang, Qian & He, Yu-Ke', 3],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=53)',
    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);