function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Lu, Xiao-Qiang & Du, Xi-Cui', 6],
    ['Matsui, Yuki & Naka, Hideshi & Jinbo, Utsugi', 3],
    ['Shin, Bora & Choi, Sei-Woong & Kim, Sung-Soo', 2],
    ['Singh, Navneet & Ranjan, Rahul & Talukdar, Avishek', 2],
    ['Ullah, Misbah & Yang, Zhaofu & Qiao, Pingping & Zhang, Yalin', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);