function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmed, Raja Ben & Romdhane, Yasmina & Tekaya, Saïda', 1],
    ['Darabi-Darestani, Kaveh & Sari, Alireza & Sarafrazi, Alimorad', 1],
    ['Fan, Sophia L. & Carle, Danielle De & Kvist, Sebastian', 1],
    ['Grosser, Clemens & Pešić, Vladimir & Gligorović, Bogić', 1],
    ['HUGHES, J. LESLIE & SIDDALL, MARK E.', 1],
    ['Hopkins, William A. & Moser, William E. & Garst, David W.', 1],
    ['Ingram, D. M.', 1],
    ['López-Jiménez, Serapio & Oceguera-Figueroa, Alejandro', 1],
    ['Mandal, C. K.', 1],
    ['Mandal, C. K. & Dhani, S.', 1],
    ['Moser, William E. & Briggler, Jeffrey T. & Richardson, Dennis J.', 1],
    ['Oceguera-Figueroa, Alejandro & Kvist, Sebastian', 5],
    ['Oceguera-Figueroa, Alejandro & Siddall, Mark E.', 1],
    ['Oka, Asajiro', 1],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 3],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    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);