function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, Peter', 2],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 1],
    ['Jiang, Guo-Chen & Liu, Hong-Chang & Chan, Tin-Yam', 4],
    ['Lagare, Nickel Jean S. & Mapi-Ot, Emmarie F. & Molina, Ziljih S.', 1],
    ['Mantelatto, Fernando L. & Tamburus, Ana Francisca', 1],
    ['Murniati, Dewi Citra & Asakura, Akira & Nugroho, Dharma Arif', 2],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Parasram, Nadeshinie & Santana, William & Vallès, Henri', 1],
    ['Published, First', 1],
    ['Shih, Hsi-Te & Ng, Peter K. L. & Davie, Peter J. F.', 1],
    ['Weber, Friedrich', 1],
    ['Wong, Kingsley J. H. & Shih, Hsi-Te & Chan, Benny K. K.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    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);