function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['El-Hawagry, Magdi S. & Sharaf, Mostafa R. & Al Dhafer, Hathal M.', 1],
    ['Markova, T. O.', 9],
    ['Meigen, Johann Wilhelm', 4],
    ['Nihei, Silvio S.', 8],
    ['Samin, N. & Shojai, M. & Asgari, S. & Ghahari, H. & Kocak, E.', 1],
    ['Schlüsslmayr, Gerhard', 2],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 5],
    ['Sun, Xuekui & Marshall, Stephen A.', 102]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=132)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);