function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broad, Gavin R.', 32],
    ['Eroğlu, F. & Kiraç, A. & Birol, O.', 1],
    ['Humala, Andrei E. & Reshchikov, Alexey', 2],
    ['Kasparyan, Dmitri R. & Khalaim, Andrey I.', 1],
    ['Khalaim, Andrey & Sheng, Mao-Ling', 4],
    ['Khalaim, Andrey I.', 11],
    ['Khalaim, Andrey I. & Balueva, Ekaterina N. & Kim, Ki-Beom', 4],
    ['Khalaim, Andrey I. & Ruíz-Cancino, Enrique', 12],
    ['Khalaim, Andrey I. & Várkonyi, Gergely', 9],
    ['Kolarov, J.', 7],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=87)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);