function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahad, Sumaya & Ahmad, Wasim', 18],
    ['Ahmad, Wasim & Naz, Tabbasam', 19],
    ['Allgén, C. A.', 13],
    ['Andrássy, István', 16],
    ['Gusakov, Vladimir A. & Gagarin, Vladimir G.', 18],
    ['Holovachov, Oleksandr', 183],
    ['Islam, Md Niraul & Ahmad, Wasim', 35],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 26],
    ['Kumar, Sumit & Ahmad, Wasim', 20],
    ['MAQSOOD AHMAD & M. SHAMIM JAIRAJPURI', 16],
    ['Naz, Tabbasam & Ahmad, Wasim', 12],
    ['P. A. A. LOOF', 14],
    ['Peña-Santiago, Reyes & Liébanas, Gracia & Ahmad, Wasim', 12],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 48],
    ['Thorne, Gerald & Swanger, Helen Heinly', 13],
    ['Other (114)', 413]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=876)',
    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);