function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, Wasim & Imran, Zarrin & Araki, Masaki', 1],
    ['Altherr, Aigle', 1],
    ['Andrássy, I.', 3],
    ['Brzeski, M.', 2],
    ['Edmond Altherr & Delamare Deboutteville, C.', 2],
    ['H. Jabbari & Gh. Niknam & A. Fallahi & E. Zahedi Asl & M. Nikdel', 2],
    ['Holovachov, Oleksandr', 70],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 6],
    ['Maria Teresa Vinciguerra & Marcella De Francisci', 2],
    ['P. A. A. LOOF', 8],
    ['Peña-Santiago, Reyes & Cortés, Nazareth', 2],
    ['Peña-Santiago, Reyes & Liébanas, Gracia & Ahmad, Wasim', 2],
    ['Rossen, H. v. & Loof, P. A. A.', 5],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 15],
    ['Vu, Tam T. & Ciobanu, M. & Abolafia, J. & Peña-Santiago, R.', 2],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=137)',
    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);