function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almendáriz, Ana & Brito, Jorge & Batallas, Diego & Ron, Santiago', 1],
    ['Camper, Jeffrey D. & Torres-Carvajal, Omar & Ron, Santiago R.', 1],
    ['Coloma, Luis A. & Carvajal-Endara, Sofía & Dueñas, Juan F.', 8],
    ['Duellman, William E. & Marion, Angela B. & Hedges, Blair', 1],
    ['FAIVOVICH, JULIÁN & HADDAD, CÉLIO F. B. & GARCIA, PAULO C. A.', 4],
    ['Ovalle-Pacheco, Andrés & Camacho-Rozo, Claudia & Arroyo, Sandy', 1],
    ['Pérez-Rojas, Diego A. & Escamilla-Quitián, Diego', 1],
    ['Restrepo, Adriana & Molina-Zuluaga, Claudia & Hurtado, Juan P.', 1],
    ['Reyes-Puig 1,2, Juan Pablo & Reyes-Puig 1,3,4, Carolina', 1],
    ['Reyes-Puig, Juan P. & Recalde, Darwin & Recalde, Fausto', 1],
    ['Rivera-Correa, Mauricio & García-Burneo, Karla & Grant, Taran', 16],
    ['Rojas-Runjaic, Fernando J. M. & Infante-Rivero, Edwin E.', 1],
    ['Ron, Santiago R. & Caminer, Marcel A. & Varela-Jaramillo, Andrea', 1],
    ['Sanchez-Nivicela, Juan C. & Falcon-Reiban, Jose M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);