function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ali, Muhammad & Raza, Ghulam & Ali, Shaukat & Anjum, Syed Istiaq', 1],
    ['Faúndez, Eduardo I. & Carvajal, Máriom A.', 1],
    ['Fernández-Aldea, A. F. & Barão, K. R. & Grazia, J. & Ferrari, A.', 6],
    ['Liu, Yidi & Ren, Yujie & Wang, Menglin', 3],
    ['Najajrah, Mohammad H. & Swaileh, Khalid M. & Qumsiyeh, Mazin B.', 1],
    ['Poorani, J. & Booth, R. G.', 1],
    ['Soulier-Perkins, Adeline', 8],
    ['Soulier-Perkins, Adeline & Cesne, Maxime Le', 6],
    ['Soulier-Perkins, Adeline & Navasero, Mario & Yap, Sheryl', 5],
    ['Soulier-Perkins, Adeline & Stroiński, Adam', 7],
    ['Soulier-Perkins, Adeline & Wilson, Michael R.', 7],
    ['Stroiński, Adam & Soulier-Perkins, Adeline', 2],
    ['Szwedo, Jacek', 2],
    ['Wang, Menglin & Soulier-Perkins, Adeline & Wang, Yinglun', 12],
    ['Xing, Jichun & Chen, Xiangsheng', 4],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    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);