function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Deepak, V. & Lalronunga, Samuel & Lalhmingliani, Esther', 3],
    ['Lapparent, France de & Bailon, Salvador & Augé, Marc Louis', 1],
    ['Ma, Shun & Shi, Sheng-Chao & Xiang, Sun-Jun & Shu, Fu', 1],
    ['Ma, Shun & Xu, Yu-Hao & Qi, Shuo & Wang, Ying-Yong', 1],
    ['Yang, Dian-Cheng & Xu, Yu-Hao & Wu, Jia-Xiang & Gong, Yan-An', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=7)',
    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);