function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andrássy, I.', 3],
    ['Bohra, P. & Sanyal, A. K. & Hussain, A. & Mitra, B.', 1],
    ['Brzeski, M.', 1],
    ['Edmond Altherr', 3],
    ['Holovachov, Oleksandr', 20],
    ['Kazemi, E. & Niknam, G. & Jabbari, H. & Peña-Santiago, R.', 1],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 1],
    ['Maria Teresa Vinciguerra & Marcella De Francisci', 2],
    ['P. A. A. LOOF', 8],
    ['Rossen, H. v. & Loof, P. A. A.', 3],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 1],
    ['Wu, Wen-Jia & Yu, Lu & Xu, Chun-Ling & Wang, Dong-Wei & Xie, Hui', 1],
    ['Zullini, A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);