function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Zhi-Teng', 2],
    ['Darilmaz, Mustafa Cemal & Salur, Ali & Murányi, Dávid', 3],
    ['Du, Yu-Zhou & Wang, Zhi-Jie', 4],
    ['Errochdi, Sanae & Alami, Majida El & Vinçon, Gilles', 3],
    ['Ji, Xiao-Yu & Du, Yu-Zhou & Wang, Zhi-Jie', 2],
    ['Judson, Sarah W. & Nelson, C. Riley', 3],
    ['Li, Weihai & Dong, Wenbin & Yang, Ding', 3],
    ['Li, Weihai & Mo, Raorao & Dong, Wenbin & Yang, Ding', 4],
    ['Li, Weihai & Teslenko, Valentina A. & Yang, Ding', 3],
    ['Li, Weihai & Wang, Ying & Yang, Ding', 3],
    ['Li, Weihai & Yang, Ding', 23],
    ['Mo, Raorao & Wang, Guoquan & Yang, Ding & Li, Weihai', 10],
    ['Stark, Bill P. & Sivec, Ignac', 13],
    ['Zhao, Meng-Yuan & Du, Yu-Zhou', 5],
    ['Zwick, Peter', 6],
    ['Other (30)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=126)',
    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);