function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, Eyjolf', 5],
    ['Bonelli, Simona & Barbero, Francesca & Casacci, Luca Pietro', 2],
    ['Cock, Matthew J. W. & Robbins, Robert K.', 2],
    ['Jarvis, Charlie', 2],
    ['Khudhur, Farhad A.', 3],
    ['Krupitsky, Anatoly V. & Pljushtch, Igor G. & Pak, Oleg V.', 2],
    ['Krupiтsky, Аnатoly V. & Pljushтch, Igor G. & Pаk, Oleg V.', 2],
    ['Munguira, Miguel L. & Martín, José & García-Barros, Enrique', 1],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 1],
    ['Pellet, Jérôme & Megali, Audrey & Pasche, Aline', 1],
    ['Zahiri, Reza & Nazari, Vazrick & Rajaei, Hossein', 2],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);