function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['\' H,. & H \\ Hu & . & Xlolfl & . & Udqfn & . & . & Kdgkrxoldwl', 2],
    ['El-Hawagry, Magdi S.', 2],
    ['Fazel, M. & Fallahzadeh, M. & Gheibi, M.', 1],
    ['Harym, Younes El & Belqat, Boutaina', 1],
    ['Kovac, D. & Kameneva, E. P. & Korneyev, V. A.', 1],
    ['Meyer, Marc De', 2],
    ['Meyer, Marc De & Copeland, Robert S.', 6],
    ['Meyer, Marc De & Mwatawala, Maulid & Copeland, Robert S.', 6],
    ['Namin, Saeed Mohamadzade & Korneyev, Valery A.', 1],
    ['Penado, Andreia & Smit, John & Aguiar, António Franquinho', 1],
    ['Savaris, Marcoandre & Marinoni, Luciane & Norrbom, Allen L.', 2],
    ['Sinclair, Bradley J.', 1],
    ['Soltanizadeh, Zohreh & Saghaei, Nazila & Ostovan, Hadi', 1],
    ['Steck, Gary J. & Ekesi, Sunday', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);