function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bandyopadhyay, Pritha & Karmakar, Krishna & Halliday, Bruce', 8],
    ['Barbar, Ziad', 1],
    ['Ebrahimi, Najmeh & Noei, Javad', 2],
    ['Fox, Irving', 1],
    ['Howell, Lindsey & Jelden, Katelyn & Rácz, Elizabeth', 4],
    ['Joharchi, Omid & Negm, Mohamed W.', 4],
    ['Joharchi, Omid & Tolstikov, Andrei V. & Khaustov, Alexander A.', 2],
    ['Kitrytė, Neringa & Baltrūnaitė, Laima', 4],
    ['Lareschi, Marcela & Savchenko, Ekaterina', 3],
    ['Lareschi, Marcela & Velazco, Paul M.', 1],
    ['Lin, Jian-Zhen', 4],
    ['Ma, Min & Li, Sheng-Cai & Fan, Qing-Hai', 3],
    ['Nemati, Alireza & Riahi, Elham & Khalili-Moghadam, Arsalan', 1],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 2],
    ['Vinarski, Maxim V. & Korallo-Vinarskaya, Natalia P.', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    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);