function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahad, Sumaya & Ahmad, Wasim', 9],
    ['Ahmad, Wasim & Naz, Tabbasam', 13],
    ['Ahmad, Wasim & Park, Byeong-Yong & Lee, Jae-Kook & Choi, Dong-Ro', 4],
    ['Allgén, C. A.', 13],
    ['Baqri, Qaiser H. & Jairajpuri, M. Shamim', 6],
    ['Ciobanu, Marcel & Popovici, Iuliana & Guerrero, Pablo', 7],
    ['Ditlevsen, Hjalmar', 5],
    ['Edmond Altherr', 10],
    ['Guerrero, Pablo & Liébanas, Gracia & Santiago, Reyes Peña-', 6],
    ['Guerrero, Pablo & Santiago, Reyes Peña-', 6],
    ['Holovachov, Oleksandr', 36],
    ['Islam, Md Niraul & Ahmad, Wasim', 10],
    ['Orselli, Lara & Clausi, Mirella & Vinciguerra, Maria Teresa', 5],
    ['Popovici, Iuliana', 5],
    ['Thorne, Gerald & Swanger, Helen Heinly', 13],
    ['Other (32)', 68]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=216)',
    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);