function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aliyev, Azer & Maharramova, Sheyda', 5],
    ['Broad, Gavin R.', 16],
    ['Eroğlu, F. & Kiraç, A. & Birol, O.', 1],
    ['Gadallah, N. S. & Ahmed, R. S. & Heneidy, A. H. El-', 1],
    ['Ghahari, H. & Hayat, R. & Tabari, M. & Ostovan, H. & Imani, S.', 1],
    ['Ghahari, H. & Schwarz, M.', 2],
    ['Ghahari, Hassan & Jussila, Reijo', 1],
    ['Humala, Andrei E. & Reshchikov, Alexey', 2],
    ['Khalaim, Andrey I. & Ruíz-Cancino, Enrique', 8],
    ['Kolarov, J.', 8],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 6],
    ['Riedel, Matthias & Ameri, Ali & Talebi, Ali Asghar', 3],
    ['Riedel, Matthias & Diller, Erich & Japoshvili, George', 2],
    ['Varga, Oleksandr', 9],
    ['Çoruh, S. & Özbek, H.', 6],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=76)',
    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);