function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abolafia, Joaquín', 5],
    ['Asif, M. & Prasad, J. S. & Khan, R. & Somasekhar, N.', 3],
    ['Félix, Marie-Anne & Braendle, Christian & Cutter, Asher D.', 15],
    ['Holovachov, Oleksandr', 10],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 11],
    ['Kito, Kenji & Ohyama, Yoshikuni', 3],
    ['Mahboob, Mohammad & Jahan, Rehmat & Tahseen, Qudsia', 5],
    ['Mumtaz, Sabia & Fatima, Hiba & Jamal, Wajih & Ahlawat, Shikha', 4],
    ['Shah, Ali Asghar & Hussain, Abid & Vaid, Shavish', 3],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 11],
    ['Sudhaus, Walter', 22],
    ['Tahseen, Qudsia & Akram, Mohd & Mustaqim, Malka', 3],
    ['Von W. Schneider', 6],
    ['Wilhelm Schneider', 7],
    ['Árpád, Soós', 7],
    ['Other (21)', 31]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=146)',
    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);