function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arbea, Javier', 2],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 10],
    ['Bernard, Ernest C.', 2],
    ['Beruete, Enrique & Arbea, Javier I. & Baquero, Enrique', 1],
    ['Brahim-Bounab, Hayette & Bendjaballah, Mohamed', 1],
    ['Denis, J. R.', 2],
    ['Eusébio, Rita & Sendra, Alberto & Enghoff, Henrik', 2],
    ['Jantarit, Sopark & Bedos, Anne & Deharveng, Louis', 1],
    ['Liu, Jie & Gao, Meixiang & Xie, Zhijing & Sun, Xin', 1],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 1],
    ['Ospina-Sanchez, Claudia Marcela & Soto-Adames, Felipe N', 3],
    ['Stebaeva, Sophya & Lonsdale, Owen & Babenko, Anatoly', 12],
    ['Sun, Xin & Wu, Donghui', 1],
    ['Sun, Xin & Zhang, Feng', 2],
    ['Thibaud, Jean-Marc', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=52)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);