function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, J. - X. & Lan, J. - H.', 1],
    ['Chen, J. - X. & Zhao, J. - F. & Zheng, J. - Z. & Li, D. - J.', 1],
    ['Chen, Y. - R. & Yang, J. - X. & Lan, J. - H.', 1],
    ['Chen, Y. - Y. & Chu, X. - L. & Luo, Z. - Y. & Wu, J. - Y.', 1],
    ['Chu, X. - L. & Cui, G. - H.', 1],
    ['Lan, J. - H. & Zhao, Y. - H. & Zhang, C. - G.', 1],
    ['Li, G. - L.', 1],
    ['Li, Jie & Li, Xinhui & Mayden, Richard L.', 1],
    ['Li, W. - X.', 6],
    ['Li, W. - X. & Chen, A. - L. & Wu, D. F. & Xu, K.', 2],
    ['Li, W. - X. & Chen, H. - M. & Ran, J. - C.', 1],
    ['Li, W. - X. & Liao, Y. - P. & Yang, H. - F.', 1],
    ['Li, W. - X. & We, D. - F. & Chen, A. - L.', 1],
    ['Li, W. - X. & Xiao, H. & Feng, F. - X. & Zhao, H. - L.', 1],
    ['Ye, Enqi & Xing, Yingchun & Zhang, Chunguang & Zhao, Yahui', 9],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);